--- layout: default-layout needAutoGenerateSidebar: true title: Dynamic Web TWAIN SDK API Reference - Index keywords: Dynamic Web TWAIN, Documentation, API Reference, Index description: Dynamic Web TWAIN Documentation API List breadcrumbText: API Reference --- > Some old APIs are deprecated, check out [Deprecated Features and APIs](/_articles/info/schedule/deprecated.md) # API List ## Global ### Methods | [`CreateDWTObject()`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#createdwtobject) | [`CreateDWTobjectEx()`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#createdwtobjectex) | [`DeleteDWTObject()`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#deletedwtobject) | [`GetWebTwain()`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#getwebtwain) | | [`Load()`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#load) | [`RegisterEvent()`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#registerevent) | [`Unload()`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#unload) | | ### Properties | [`AutoLoad`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#autoload) | [`Containers`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#containers) | [`CustomizableDisplayInfo`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#customizabledisplayinfo) | [`DeviceFriendlyName`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#devicefriendlyname) | | [`EnableLocalNetworkMixedContent`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#enablelocalnetworkmixedcontent) | [`Host`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#host) | [`IfAddMD5InUploadHeader`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#ifaddmd5inuploadheader) | [`IfConfineMaskWithinTheViewer`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#ifconfinemaskwithintheviewer) | | [`JSVersion`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#jsversion) | [`ProductKey`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#productkey) | [`ResourcesPath`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#resourcespath) | [`ServiceInstallerLocation`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#serviceinstallerlocation) | | [`UseDefaultViewer`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#usedefaultviewer) | [`IfCheckCORS`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#ifcheckcors) | [`IfAlwaysFocusOnPopupWindow`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#ifalwaysfocusonpopupwindow) | | ### Events | [`OnWebTwainReady`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#onwebtwainready) | [`OnWebTwainError`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#onwebtwainerror) | [`OnWebTwainPostExecute`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#onwebtwainpostexecute) | [`OnWebTwainPreExecute`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#onwebtwainpreexecute) | ## Buffer ### Methods | [`ClearImageTags()`](/_articles/info/api/WebTwain_Buffer.md#clearimagetags) | [`RenameTag()`](/_articles/info/api/WebTwain_Buffer.md#renametag) | [`RemoveTag()`](/_articles/info/api/WebTwain_Buffer.md#removetag) | [`GetTagList()`](/_articles/info/api/WebTwain_Buffer.md#gettaglist) | | [`FilterImagesByTag()`](/_articles/info/api/WebTwain_Buffer.md#filterimagesbytag) | [`ClearFilter()`](/_articles/info/api/WebTwain_Buffer.md#clearfilter) | [`SetDefaultTag()`](/_articles/info/api/WebTwain_Buffer.md#setdefaulttag) | [`TagImages()`](/_articles/info/api/WebTwain_Buffer.md#tagimages) | | [`GetImageBitDepth()`](/_articles/info/api/WebTwain_Buffer.md#getimagebitdepth) | [`GetImageSize()`](/_articles/info/api/WebTwain_Buffer.md#getimagesize) | [`GetImageSizeWithSpecifiedType()`](/_articles/info/api/WebTwain_Buffer.md#getimagesizewithspecifiedtype) | [`GetSelectedImagesSize()`](/_articles/info/api/WebTwain_Buffer.md#getselectedimagessize) | | [`GetImageHeight()`](/_articles/info/api/WebTwain_Buffer.md#getimageheight) | [`GetImageWidth()`](/_articles/info/api/WebTwain_Buffer.md#getimagewidth) | [`GetImagePartURL()`](/_articles/info/api/WebTwain_Buffer.md#getimageparturl) | [`GetImageURL()`](/_articles/info/api/WebTwain_Buffer.md#getimageurl) | | [`GetImageXResolution()`](/_articles/info/api/WebTwain_Buffer.md#getimagexresolution) | [`GetImageYResolution()`](/_articles/info/api/WebTwain_Buffer.md#getimageyresolution) | [`GetSkewAngle()`](/_articles/info/api/WebTwain_Buffer.md#getskewangle) | [`GetSkewAngleEx()`](/_articles/info/api/WebTwain_Buffer.md#getskewangleex) | | [`ImageIDToIndex()`](/_articles/info/api/WebTwain_Buffer.md#imageidtoindex) | [`IndexToImageID()`](/_articles/info/api/WebTwain_Buffer.md#indextoimageid) | [`IsBlankImage()`](/_articles/info/api/WebTwain_Buffer.md#isblankimage) | [`IsBlankImageExpress()`](/_articles/info/api/WebTwain_Buffer.md#isblankimageexpress) | | [`SelectAllImages()`](/_articles/info/api/WebTwain_Buffer.md#selectallimages) | [`MoveImage()`](/_articles/info/api/WebTwain_Buffer.md#moveimage) | [`SwitchImage()`](/_articles/info/api/WebTwain_Buffer.md#switchimage) | [`RemoveImage()`](/_articles/info/api/WebTwain_Buffer.md#removeimage) | | [`RemoveAllImages()`](/_articles/info/api/WebTwain_Buffer.md#removeallimages) | [`RemoveAllSelectedImages()`](/_articles/info/api/WebTwain_Buffer.md#removeallselectedimages) | [`SelectImages()`](/_articles/info/api/WebTwain_Buffer.md#selectimages) | [`GetTagListByIndex()`](/_articles/info/api/WebTwain_Buffer.md#gettaglistbyindex) | | [`CreateDocument()`](/_articles/info/api/WebTwain_Buffer.md#createdocument) | [`OpenDocument()`](/_articles/info/api/WebTwain_Buffer.md#opendocument) | [`GetCurrentDocumentName()`](/_articles/info/api/WebTwain_Buffer.md#getcurrentdocumentname) | [`RenameDocument()`](/_articles/info/api/WebTwain_Buffer.md#renamedocument) | | [`RemoveDocument()`](/_articles/info/api/WebTwain_Buffer.md#removedocument) | [`GetDocumentInfoList()`](/_articles/info/api/WebTwain_Buffer.md#getdocumentinfolist) | [`IsBlankImageAsync()`](/_articles/info/api/WebTwain_Buffer.md#isblankimageasync) | [`CopyToDocumentAsync()`](/_articles/info/api/WebTwain_Buffer.md#copytodocumentasync) | | [`MoveToDocumentAsync()`](/_articles/info/api/WebTwain_Buffer.md#movetodocumentasync) | [`updateImage()`](/_articles/info/api/WebTwain_Buffer.md#updateimage) | ### Properties | [`BlankImageCurrentStdDev`](/_articles/info/api/WebTwain_Buffer.md#blankimagecurrentstddev) | [`BlankImageMaxStdDev`](/_articles/info/api/WebTwain_Buffer.md#blankimagemaxstddev) | [`BlankImageThreshold`](/_articles/info/api/WebTwain_Buffer.md#blankimagethreshold) | [`BufferMemoryLimit`](/_articles/info/api/WebTwain_Buffer.md#buffermemorylimit) | | [`CurrentImageIndexInBuffer`](/_articles/info/api/WebTwain_Buffer.md#currentimageindexinbuffer) | [`HowManyImagesInBuffer`](/_articles/info/api/WebTwain_Buffer.md#howmanyimagesinbuffer) | [`IfAllowLocalCache`](/_articles/info/api/WebTwain_Buffer.md#ifallowlocalcache) | [`SelectedImagesIndices`](/_articles/info/api/WebTwain_Buffer.md#selectedimagesindices) | | [`MaxImagesInBuffer`](/_articles/info/api/WebTwain_Buffer.md#maximagesinbuffer) | ### Events | [`OnBufferChanged`](/_articles/info/api/WebTwain_Buffer.md#onbufferchanged) | [`OnBitmapChanged`](/_articles/info/api/WebTwain_Buffer.md#onbitmapchanged) | [`OnIndexChangeDragDropDone`](/_articles/info/api/WebTwain_Buffer.md#onindexchangedragdropdone) | [`OnTopImageInTheViewChanged`](/_articles/info/api/WebTwain_Buffer.md#ontopimageintheviewchanged) | | [`OnDiskExceedLimit`](/_articles/info/api/WebTwain_Buffer.md#ondiskexceedlimit) | ## Edit ### Methods | [`Crop()`](/_articles/info/api/WebTwain_Edit.md#crop) | [`CropToClipboard()`](/_articles/info/api/WebTwain_Edit.md#croptoclipboard) | [`CutFrameToClipboard()`](/_articles/info/api/WebTwain_Edit.md#cutframetoclipboard) | [`CutToClipboard()`](/_articles/info/api/WebTwain_Edit.md#cuttoclipboard) | | [`CopyToClipboard()`](/_articles/info/api/WebTwain_Edit.md#copytoclipboard) | [`Erase()`](/_articles/info/api/WebTwain_Edit.md#erase) | [`Flip()`](/_articles/info/api/WebTwain_Edit.md#flip) | [`Mirror()`](/_articles/info/api/WebTwain_Edit.md#mirror) | | [`Rotate()`](/_articles/info/api/WebTwain_Edit.md#rotate) | [`RotateEx()`](/_articles/info/api/WebTwain_Edit.md#rotateex) | [`RotateLeft()`](/_articles/info/api/WebTwain_Edit.md#rotateleft) | [`RotateRight()`](/_articles/info/api/WebTwain_Edit.md#rotateright) | | [`ChangeBitDepth()`](/_articles/info/api/WebTwain_Edit.md#changebitdepth) | [`SetDPI()`](/_articles/info/api/WebTwain_Edit.md#setdpi) | [`ConvertToBW()`](/_articles/info/api/WebTwain_Edit.md#converttobw) | [`ConvertToGrayScale()`](/_articles/info/api/WebTwain_Edit.md#converttograyscale) | | [`ChangeImageSize()`](/_articles/info/api/WebTwain_Edit.md#changeimagesize) | [`Invert()`](/_articles/info/api/WebTwain_Edit.md#invert) | [`SetImageWidth()`](/_articles/info/api/WebTwain_Edit.md#setimagewidth) | [`ChangeBrightnessAsync()`](/_articles/info/api/WebTwain_Edit.md#changebrightnessasync) | | [`ChangeContrastAsync()`](/_articles/info/api/WebTwain_Edit.md#changecontrastasync) | ### Properties |[`BackgroundFillColor`](/_articles/info/api/WebTwain_Edit.md#backgroundfillcolor) | ## Scan ### Methods | [`GetSourceNameItems()`](/_articles/info/api/WebTwain_Acquire.md#getsourcenameitems) | [`GetSourceNames()`](/_articles/info/api/WebTwain_Acquire.md#getsourcenames) | [`GetSourceNamesAsync()`](/_articles/info/api/WebTwain_Acquire.md#getsourcenamesasync) | [`SelectSource()`](/_articles/info/api/WebTwain_Acquire.md#selectsource) | | [`SelectSourceAsync()`](/_articles/info/api/WebTwain_Acquire.md#selectsourceasync) | [`SelectSourceByIndex()`](/_articles/info/api/WebTwain_Acquire.md#selectsourcebyindex) | [`SelectSourceByIndexAsync()`](/_articles/info/api/WebTwain_Acquire.md#selectsourcebyindexasync) | [`SetOpenSourceTimeout()`](/_articles/info/api/WebTwain_Acquire.md#setopensourcetimeout) | | [`OpenSource()`](/_articles/info/api/WebTwain_Acquire.md#opensource) | [`OpenSourceAsync()`](/_articles/info/api/WebTwain_Acquire.md#opensourceasync) | [`EnableSourceUI()`](/_articles/info/api/WebTwain_Acquire.md#enablesourceui) | [`EnableSource()`](/_articles/info/api/WebTwain_Acquire.md#enablesource) | | [`AcquireImage()`](/_articles/info/api/WebTwain_Acquire.md#acquireimage) | [`startScan()`](/_articles/info/api/WebTwain_Acquire.md#startscan) | [`DisableSource()`](/_articles/info/api/WebTwain_Acquire.md#disablesource) | [`CloseSource()`](/_articles/info/api/WebTwain_Acquire.md#closesource) | | [`CloseSourceAsync()`](/_articles/info/api/WebTwain_Acquire.md#closesourceasync) | [`CloseWorkingProcess()`](/_articles/info/api/WebTwain_Acquire.md#closeworkingprocess) | [`GetDevicesAsync()`](/_articles/info/api/WebTwain_Acquire.md#getdevicesasync) | [`SelectDeviceAsync()`](/_articles/info/api/WebTwain_Acquire.md#selectdeviceasync) | | [`AcquireImageAsync()`](/_articles/info/api/WebTwain_Acquire.md#acquireimageasync) | ### Properties |[`CurrentSourceName`](/_articles/info/api/WebTwain_Acquire.md#currentsourcename) |[`IfDisableSourceAfterAcquire`](/_articles/info/api/WebTwain_Acquire.md#ifdisablesourceafteracquire) |[`IfDuplexEnabled`](/_articles/info/api/WebTwain_Acquire.md#ifduplexenabled) |[`IfFeederEnabled`](/_articles/info/api/WebTwain_Acquire.md#iffeederenabled)| | [`PageSize`](/_articles/info/api/WebTwain_Acquire.md#pagesize) |[`PixelType`](/_articles/info/api/WebTwain_Acquire.md#pixeltype) |[`Resolution`](/_articles/info/api/WebTwain_Acquire.md#resolution) |[`SourceCount`](/_articles/info/api/WebTwain_Acquire.md#sourcecount)| ### Events | [`OnPostAllTransfers`](/_articles/info/api/WebTwain_Acquire.md#onpostalltransfers) | [`OnPostTransfer`](/_articles/info/api/WebTwain_Acquire.md#onposttransfer) | [`OnPostTransferAsync`](/_articles/info/api/WebTwain_Acquire.md#onposttransferasync) | | [`OnPreAllTransfers`](/_articles/info/api/WebTwain_Acquire.md#onprealltransfers) | [`OnPreTransfer`](/_articles/info/api/WebTwain_Acquire.md#onpretransfer) | > The following APIs are compatible with TWAIN and ICA ### Methods |[`getCapabilities()`](/_articles/info/api/WebTwain_Acquire.md#getcapabilities) | [`setCapabilities()`](/_articles/info/api/WebTwain_Acquire.md#setcapabilities)| > The following APIs are compatible with TWAIN (mostly Windows, but could also be macOS) ### Methods | [`OpenSourceManager()`](/_articles/info/api/WebTwain_Acquire.md#opensourcemanager) | [`OpenSourceManagerAsync()`](/_articles/info/api/WebTwain_Acquire.md#opensourcemanagerasync) | [`CloseSourceManager()`](/_articles/info/api/WebTwain_Acquire.md#closesourcemanager) | [`CloseSourceManagerAsync()`](/_articles/info/api/WebTwain_Acquire.md#closesourcemanagerasync) | | [`GetCustomDSData()`](/_articles/info/api/WebTwain_Acquire.md#getcustomdsdata) | [`GetCustomDSDataEx()`](/_articles/info/api/WebTwain_Acquire.md#getcustomdsdataex) | [`CancelAllPendingTransfers()`](/_articles/info/api/WebTwain_Acquire.md#cancelallpendingtransfers) | [`FeedPage()`](/_articles/info/api/WebTwain_Acquire.md#feedpage) | | [`ResetImageLayout()`](/_articles/info/api/WebTwain_Acquire.md#resetimagelayout) | [`RewindPage()`](/_articles/info/api/WebTwain_Acquire.md#rewindpage) | [`SetCustomDSData()`](/_articles/info/api/WebTwain_Acquire.md#setcustomdsdata) | [`SetCustomDSDataEx()`](/_articles/info/api/WebTwain_Acquire.md#setcustomdsdataex) | | [`SetFileXferInfo()`](/_articles/info/api/WebTwain_Acquire.md#setfilexferinfo) | [`SetImageLayout()`](/_articles/info/api/WebTwain_Acquire.md#setimagelayout) | ### Properties | [`BitDepth`](/_articles/info/api/WebTwain_Acquire.md#bitdepth) | [`Brightness`](/_articles/info/api/WebTwain_Acquire.md#brightness) | [`Contrast`](/_articles/info/api/WebTwain_Acquire.md#contrast) | [`DataSourceStatus`](/_articles/info/api/WebTwain_Acquire.md#datasourcestatus) | | [`DefaultSourceName`](/_articles/info/api/WebTwain_Acquire.md#defaultsourcename) | [`Duplex`](/_articles/info/api/WebTwain_Acquire.md#duplex) | [`IfAutoBright`](/_articles/info/api/WebTwain_Acquire.md#ifautobright) | [`IfAutoDiscardBlankpages`](/_articles/info/api/WebTwain_Acquire.md#ifautodiscardblankpages) | | [`IfAutoFeed`](/_articles/info/api/WebTwain_Acquire.md#ifautofeed) | [`IfAutomaticBorderDetection`](/_articles/info/api/WebTwain_Acquire.md#ifautomaticborderdetection) | [`IfAutomaticDeskew`](/_articles/info/api/WebTwain_Acquire.md#ifautomaticdeskew) | [`IfAutoScan`](/_articles/info/api/WebTwain_Acquire.md#ifautoscan) | | [`IfFeederLoaded`](/_articles/info/api/WebTwain_Acquire.md#iffeederloaded) | [`IfPaperDetectable`](/_articles/info/api/WebTwain_Acquire.md#ifpaperdetectable) | [`IfShowIndicator`](/_articles/info/api/WebTwain_Acquire.md#ifshowindicator) | [`IfShowUI`](/_articles/info/api/WebTwain_Acquire.md#ifshowui) | | [`IfUIControllable`](/_articles/info/api/WebTwain_Acquire.md#ifuicontrollable) | [`IfUseTwainDSM`](/_articles/info/api/WebTwain_Acquire.md#ifusetwaindsm) | [`ImageCaptureDriverType`](/_articles/info/api/WebTwain_Acquire.md#imagecapturedrivertype) | [`ImageLayoutDocumentNumber`](/_articles/info/api/WebTwain_Acquire.md#imagelayoutdocumentnumber) | | [`ImageLayoutFrameBottom`](/_articles/info/api/WebTwain_Acquire.md#imagelayoutframebottom) | [`ImageLayoutFrameLeft`](/_articles/info/api/WebTwain_Acquire.md#imagelayoutframeleft) | [`ImageLayoutFrameNumber`](/_articles/info/api/WebTwain_Acquire.md#imagelayoutframenumber) | [`ImageLayoutFrameRight`](/_articles/info/api/WebTwain_Acquire.md#imagelayoutframeright) | | [`ImageLayoutFrameTop`](/_articles/info/api/WebTwain_Acquire.md#imagelayoutframetop) | [`ImageLayoutPageNumber`](/_articles/info/api/WebTwain_Acquire.md#imagelayoutpagenumber) | [`ImagePixelType`](/_articles/info/api/WebTwain_Acquire.md#imagepixeltype) | [`MagData`](/_articles/info/api/WebTwain_Acquire.md#magdata) | | [`MagType`](/_articles/info/api/WebTwain_Acquire.md#magtype) | [`PendingXfers`](/_articles/info/api/WebTwain_Acquire.md#pendingxfers) | [`PixelFlavor`](/_articles/info/api/WebTwain_Acquire.md#pixelflavor) | [`TransferMode`](/_articles/info/api/WebTwain_Acquire.md#transfermode) | | [`Unit`](/_articles/info/api/WebTwain_Acquire.md#unit) | [`XferCount`](/_articles/info/api/WebTwain_Acquire.md#xfercount) | [`IfAppendImage`](/_articles/info/api/WebTwain_Acquire.md#ifappendimage) | ### Events | [`OnSourceUIClose`](/_articles/info/api/WebTwain_Acquire.md#onsourceuiclose) | ## Input/Output ### Input #### Methods | [`LoadImage()`](/_articles/info/api/WebTwain_IO.md#loadimage) | [`LoadImageEx()`](/_articles/info/api/WebTwain_IO.md#loadimageex) | [`LoadImageFromBase64Binary()`](/_articles/info/api/WebTwain_IO.md#loadimagefrombase64binary) | [`LoadImageFromBinary()`](/_articles/info/api/WebTwain_IO.md#loadimagefrombinary) | | [`LoadDibFromClipboard()`](/_articles/info/api/WebTwain_IO.md#loaddibfromclipboard) | [`FTPDownload()`](/_articles/info/api/WebTwain_IO.md#ftpdownload) | [`FTPDownloadEx()`](/_articles/info/api/WebTwain_IO.md#ftpdownloadex) | [`HTTPDownload()`](/_articles/info/api/WebTwain_IO.md#httpdownload) | | [`HTTPDownloadEx()`](/_articles/info/api/WebTwain_IO.md#httpdownloadex) | [`HTTPDownloadThroughPost()`](/_articles/info/api/WebTwain_IO.md#httpdownloadthroughpost) | [`loadFromLocalStorage()`](/_articles/info/api/WebTwain_IO.md#loadfromlocalstorage) | ### Output #### Methods | [`ConvertToBase64()`](/_articles/info/api/WebTwain_IO.md#converttobase64) | [`ConvertToBlob()`](/_articles/info/api/WebTwain_IO.md#converttoblob) | [`FTPUpload()`](/_articles/info/api/WebTwain_IO.md#ftpupload) | | [`FTPUploadEx()`](/_articles/info/api/WebTwain_IO.md#ftpuploadex) | [`FTPUploadAllAsMultiPageTIFF()`](/_articles/info/api/WebTwain_IO.md#ftpuploadallasmultipagetiff) | [`FTPUploadAllAsPDF()`](/_articles/info/api/WebTwain_IO.md#ftpuploadallaspdf) | | [`FTPUploadAsMultiPagePDF()`](/_articles/info/api/WebTwain_IO.md#ftpuploadasmultipagepdf) | [`FTPUploadAsMultiPageTIFF()`](/_articles/info/api/WebTwain_IO.md#ftpuploadasmultipagetiff) | [`HTTPUpload()`](/_articles/info/api/WebTwain_IO.md#httpupload) | | [`HTTPUploadThroughPutEx()`](/_articles/info/api/WebTwain_IO.md#httpuploadthroughputex) | [`HTTPUploadThroughPost()`](/_articles/info/api/WebTwain_IO.md#httpuploadthroughpost) | [`HTTPUploadThroughPostEx()`](/_articles/info/api/WebTwain_IO.md#httpuploadthroughpostex) | | [`HTTPUploadAllThroughPostAsMultiPageTIFF()`](/_articles/info/api/WebTwain_IO.md#httpuploadallthroughpostasmultipagetiff) | [`HTTPUploadAllThroughPostAsPDF()`](/_articles/info/api/WebTwain_IO.md#httpuploadallthroughpostaspdf) | [`HTTPUploadThroughPostAsMultiPagePDF()`](/_articles/info/api/WebTwain_IO.md#httpuploadthroughpostasmultipagepdf) | | [`HTTPUploadThroughPostAsMultiPageTIFF()`](/_articles/info/api/WebTwain_IO.md#httpuploadthroughpostasmultipagetiff) | [`OutputSelectedAreaAsync()`](/_articles/info/api/WebTwain_IO.md#outputselectedareaasync) | [`SaveAsBMP()`](/_articles/info/api/WebTwain_IO.md#saveasbmp) | | [`SaveAsJPEG()`](/_articles/info/api/WebTwain_IO.md#saveasjpeg) | [`SaveAsPDF()`](/_articles/info/api/WebTwain_IO.md#saveaspdf) | [`SaveAsPNG()`](/_articles/info/api/WebTwain_IO.md#saveaspng) | | [`SaveAsTIFF()`](/_articles/info/api/WebTwain_IO.md#saveastiff) | [`SaveSelectedImagesAsMultiPagePDF()`](/_articles/info/api/WebTwain_IO.md#saveselectedimagesasmultipagepdf) | [`SaveSelectedImagesAsMultiPageTIFF()`](/_articles/info/api/WebTwain_IO.md#saveselectedimagesasmultipagetiff) | | [`SaveAllAsMultiPageTIFF()`](/_articles/info/api/WebTwain_IO.md#saveallasmultipagetiff) | [`SaveAllAsPDF()`](/_articles/info/api/WebTwain_IO.md#saveallaspdf) | [`httpUploadBlob()`](/_articles/info/api/WebTwain_IO.md#httpuploadblob) | | [`saveBlob()`](/_articles/info/api/WebTwain_IO.md#saveblob) | [`saveToLocalStorage()`](/_articles/info/api/WebTwain_IO.md#savetolocalstorage) | ### Others #### Methods | [`ClearTiffCustomTag()`](/_articles/info/api/WebTwain_IO.md#cleartiffcustomtag) | [`SetTiffCustomTag()`](/_articles/info/api/WebTwain_IO.md#settiffcustomtag) | [`ClearAllHTTPFormField()`](/_articles/info/api/WebTwain_IO.md#clearallhttpformfield) | [`SetHTTPFormField()`](/_articles/info/api/WebTwain_IO.md#sethttpformfield) | | [`SetHTTPHeader()`](/_articles/info/api/WebTwain_IO.md#sethttpheader) | [`SetUploadSegment()`](/_articles/info/api/WebTwain_IO.md#setuploadsegment) | [`ShowFileDialog()`](/_articles/info/api/WebTwain_IO.md#showfiledialog) | [`Print()`](/_articles/info/api/WebTwain_IO.md#print) | | [`PrintEx()`](/_articles/info/api/WebTwain_IO.md#printex) | [`createLocalStorage()`](/_articles/info/api/WebTwain_IO.md#createlocalstorage) | [`localStorageExist()`](/_articles/info/api/WebTwain_IO.md#localstorageexist) | [`removeLocalStorage()`](/_articles/info/api/WebTwain_IO.md#removelocalstorage) | #### Properties | [`FTPPassword`](/_articles/info/api/WebTwain_IO.md#ftppassword) | [`FTPPort`](/_articles/info/api/WebTwain_IO.md#ftpport) | [`FTPUserName`](/_articles/info/api/WebTwain_IO.md#ftpusername) | [`IfPASVMode`](/_articles/info/api/WebTwain_IO.md#ifpasvmode) | | [`HttpFieldNameOfUploadedImage`](/_articles/info/api/WebTwain_IO.md#httpfieldnameofuploadedimage) | [`HTTPPort`](/_articles/info/api/WebTwain_IO.md#httpport) | [`IfSSL`](/_articles/info/api/WebTwain_IO.md#ifssl) | [`HTTPPostResponseString`](/_articles/info/api/WebTwain_IO.md#httppostresponsestring) | | [`IfShowFileDialog`](/_articles/info/api/WebTwain_IO.md#ifshowfiledialog) | [`IfShowCancelDialogWhenImageTransfer`](/_articles/info/api/WebTwain_IO.md#ifshowcanceldialogwhenimagetransfer) | [`IfShowProgressBar`](/_articles/info/api/WebTwain_IO.md#ifshowprogressbar) | [`JPEGQuality`](/_articles/info/api/WebTwain_IO.md#jpegquality) | | [`IfTiffMultiPage`](/_articles/info/api/WebTwain_IO.md#iftiffmultipage) | [`TIFFCompressionType`](/_articles/info/api/WebTwain_IO.md#tiffcompressiontype) | [`MaxUploadImageSize`](/_articles/info/api/WebTwain_IO.md#maxuploadimagesize) | [`IfSortBySelectionOrder`](/_articles/info/api/WebTwain_IO.md#ifsortbyselectionorder) | #### Events |[`OnGetFilePath`](/_articles/info/api/WebTwain_IO.md#ongetfilepath)|[`OnPostLoad`](/_articles/info/api/WebTwain_IO.md#onpostload)| [`OnInternetTransferPercentage`](/_articles/info/api/WebTwain_IO.md#oninternettransferpercentage)| ## Util ### Methods |[`RegisterEvent()`](/_articles/info/api/WebTwain_Util.md#registerevent) | [`UnregisterEvent()`](/_articles/info/api/WebTwain_Util.md#unregisterevent) | [`GenerateURLForUploadData()`](/_articles/info/api/WebTwain_Util.md#generateurlforuploaddata) | ### Properties | [`ErrorCode`](/_articles/info/api/WebTwain_Util.md#errorcode) | [`ErrorCause`](/_articles/info/api/WebTwain_Util.md#errorcause) | [`ErrorString`](/_articles/info/api/WebTwain_Util.md#errorstring) | [`LogLevel`](/_articles/info/api/WebTwain_Util.md#loglevel) | [`Manufacturer`](/_articles/info/api/WebTwain_Util.md#manufacturer) | | [`ProductFamily`](/_articles/info/api/WebTwain_Util.md#productfamily) | [`ProductName`](/_articles/info/api/WebTwain_Util.md#productname) | [`VersionInfo`](/_articles/info/api/WebTwain_Util.md#versioninfo) | | ## Viewer ### Methods | [`bind()`](/_articles/info/api/WebTwain_Viewer.md#bind) | [`clearSelectedAreas()`](/_articles/info/api/WebTwain_Viewer.md#clearselectedareas) | [`createCustomElement()`](/_articles/info/api/WebTwain_Viewer.md#createcustomelement) | [`createImageEditor()`](/_articles/info/api/WebTwain_Viewer.md#createimageeditor) | | [`createThumbnailViewer()`](/_articles/info/api/WebTwain_Viewer.md#createthumbnailviewer) | [`first()`](/_articles/info/api/WebTwain_Viewer.md#first) | [`fitWindow()`](/_articles/info/api/WebTwain_Viewer.md#fitwindow) | [`gotoPage()`](/_articles/info/api/WebTwain_Viewer.md#gotopage) | | [`getVisiblePagesInfo()`](/_articles/info/api/WebTwain_Viewer.md#getvisiblepagesinfo) | [`hide()`](/_articles/info/api/WebTwain_Viewer.md#hide) | [`last()`](/_articles/info/api/WebTwain_Viewer.md#last) | [`next()`](/_articles/info/api/WebTwain_Viewer.md#next) | | [`off()`](/_articles/info/api/WebTwain_Viewer.md#off) | [`on()`](/_articles/info/api/WebTwain_Viewer.md#on) | [`previous()`](/_articles/info/api/WebTwain_Viewer.md#previous) | [`render()`](/_articles/info/api/WebTwain_Viewer.md#render) | | [`setButtonClass()`](/_articles/info/api/WebTwain_Viewer.md#setbuttonclass) | [`setSelectedAreas()`](/_articles/info/api/WebTwain_Viewer.md#setselectedareas) | [`setViewMode()`](/_articles/info/api/WebTwain_Viewer.md#setviewmode) | [`show()`](/_articles/info/api/WebTwain_Viewer.md#show) | | [`unbind()`](/_articles/info/api/WebTwain_Viewer.md#unbind) | [`updateCheckboxStyle()`](/_articles/info/api/WebTwain_Viewer.md#updatecheckboxstyle) | [`updatePageNumberStyle()`](/_articles/info/api/WebTwain_Viewer.md#updatepagenumberstyle) | [`updateSelectionBoxStyle()`](/_articles/info/api/WebTwain_Viewer.md#updateselectionboxstyle) | ### Properties | [`acceptDrop`](/_articles/info/api/WebTwain_Viewer.md#acceptdrop) | [`allowPageDragging`](/_articles/info/api/WebTwain_Viewer.md#allowpagedragging) | [`allowSlide`](/_articles/info/api/WebTwain_Viewer.md#allowslide) | [`autoChangeIndex`](/_articles/info/api/WebTwain_Viewer.md#autochangeindex) | | [`background`](/_articles/info/api/WebTwain_Viewer.md#background) | [`border`](/_articles/info/api/WebTwain_Viewer.md#border) | [`cursor`](/_articles/info/api/WebTwain_Viewer.md#cursor) | [`focusOutlineEnabled`](/_articles/info/api/WebTwain_Viewer.md#focusoutlineenabled) | | [`height`](/_articles/info/api/WebTwain_Viewer.md#height) | [`idPostfix`](/_articles/info/api/WebTwain_Viewer.md#idpostfix) | [`ifAutoScroll`](/_articles/info/api/WebTwain_Viewer.md#ifautoscroll) | [`innerBorder`](/_articles/info/api/WebTwain_Viewer.md#innerborder) | | [`pageMargin`](/_articles/info/api/WebTwain_Viewer.md#pagemargin) | [`selectedAreaBorderColor`](/_articles/info/api/WebTwain_Viewer.md#selectedareabordercolor) | [`selectedPageBackground`](/_articles/info/api/WebTwain_Viewer.md#selectedpagebackground) | [`selectedPageBorder`](/_articles/info/api/WebTwain_Viewer.md#selectedpageborder) | | [`selectionMode`](/_articles/info/api/WebTwain_Viewer.md#selectionmode) | [`selectionRectAspectRatio`](/_articles/info/api/WebTwain_Viewer.md#selectionrectaspectratio) | [`singlePageMode`](/_articles/info/api/WebTwain_Viewer.md#singlepagemode) | [`width`](/_articles/info/api/WebTwain_Viewer.md#width) | | [`zoom`](/_articles/info/api/WebTwain_Viewer.md#zoom) | [`zoomOrigin`](/_articles/info/api/WebTwain_Viewer.md#zoomorigin) | | | ### Events | [`click`](/_articles/info/api/WebTwain_Viewer.md#on) | [`contextmenu`](/_articles/info/api/WebTwain_Viewer.md#on) | [`dblclick`](/_articles/info/api/WebTwain_Viewer.md#on) | [`mousemove`](/_articles/info/api/WebTwain_Viewer.md#on) | | [`mousedown`](/_articles/info/api/WebTwain_Viewer.md#on) | [`mouseup`](/_articles/info/api/WebTwain_Viewer.md#on) | [`mouseout`](/_articles/info/api/WebTwain_Viewer.md#on) | [`mouseover`](/_articles/info/api/WebTwain_Viewer.md#on) | | [`keydown`](/_articles/info/api/WebTwain_Viewer.md#on) | [`keyup`](/_articles/info/api/WebTwain_Viewer.md#on) | [`pageAreaSelected`](/_articles/info/api/WebTwain_Viewer.md#pageareaselected) | [`pageAreaUnselected`](/_articles/info/api/WebTwain_Viewer.md#pageareaunselected) | | [`pageRendered`](/_articles/info/api/WebTwain_Viewer.md#pagerendered) | [`resize`](/_articles/info/api/WebTwain_Viewer.md#resize) | ## Addon ## BarcodeReader ### Methods | [`decode()`](/_articles/info/api/Addon_BarcodeReader.md#decode) | [`getRuntimeSettings()`](/_articles/info/api/Addon_BarcodeReader.md#getruntimesettings) | [`updateRuntimeSettings()`](/_articles/info/api/Addon_BarcodeReader.md#updateruntimesettings) | | [`resetRuntimeSettings()`](/_articles/info/api/Addon_BarcodeReader.md#resetruntimesettings) | [`initRuntimeSettingsWithString()`](/_articles/info/api/Addon_BarcodeReader.md#initruntimesettingswithstring) | ## PDF ### Methods | [`GetConvertMode()`](/_articles/info/api/Addon_PDF.md#getconvertmode) | [`IsModuleInstalled()`](/_articles/info/api/Addon_PDF.md#ismoduleinstalled) | [`IsRasterizationRequired()`](/_articles/info/api/Addon_PDF.md#israsterizationrequired) | [`IsTextBasedPDF()`](/_articles/info/api/Addon_PDF.md#istextbasedpdf) | [`SetConvertMode()`](/_articles/info/api/Addon_PDF.md#setconvertmode) | | [`SetPassword()`](/_articles/info/api/Addon_PDF.md#setpassword) | [`SetResolution()`](/_articles/info/api/Addon_PDF.md#setresolution) | [`Write.Setup()`](/_articles/info/api/Addon_PDF.md#writesetup) | [`GetReaderOptions()`](/_articles/info/api/Addon_PDF.md#getreaderoptions) | | [`SetReaderOptions()`](/_articles/info/api/Addon_PDF.md#setreaderoptions) | ## OCR ### Methods | [`GetInstalledOCRInfo()`](/_articles/info/api/Addon_OCR.md#getinstalledocrinfo) | [`DetectPageOrientation()`](/_articles/info/api/Addon_OCR.md#detectpageorientation) | [`Recognize()`](/_articles/info/api/Addon_OCR.md#recognize) | [`SaveToPath()`](/_articles/info/api/Addon_OCR.md#savetopath) | | [`SaveAsBase64()`](/_articles/info/api/Addon_OCR.md#saveasbase64) | [`SaveAsBlob()`](/_articles/info/api/Addon_OCR.md#saveasblob) | ## Webcam ### Methods | [`CaptureImage()`](/_articles/info/api/Addon_Webcam.md#captureimage) | [`CloseSource()`](/_articles/info/api/Addon_Webcam.md#closesource) | [`GetCameraControlPropertySetting()`](/_articles/info/api/Addon_Webcam.md#getcameracontrolpropertysetting) | [`GetCameraControlPropertyMoreSetting()`](/_articles/info/api/Addon_Webcam.md#getcameracontrolpropertymoresetting) | | [`GetVideoPropertySetting()`](/_articles/info/api/Addon_Webcam.md#getvideopropertysetting) | [`GetVideoPropertyMoreSetting()`](/_articles/info/api/Addon_Webcam.md#getvideopropertymoresetting) | [`SetCameraControlPropertySetting()`](/_articles/info/api/Addon_Webcam.md#setcameracontrolpropertysetting) | [`SetVideoPropertySetting()`](/_articles/info/api/Addon_Webcam.md#setvideopropertysetting) | | [`GetFrameRate()`](/_articles/info/api/Addon_Webcam.md#getframerate) | [`SetFrameRate()`](/_articles/info/api/Addon_Webcam.md#setframerate) | [`GetMediaType()`](/_articles/info/api/Addon_Webcam.md#getmediatype) | [`SetMediaType()`](/_articles/info/api/Addon_Webcam.md#setmediatype) | | [`GetResolution()`](/_articles/info/api/Addon_Webcam.md#getresolution) | [`SetResolution()`](/_articles/info/api/Addon_Webcam.md#setresolution) | [`GetFramePartURL()`](/_articles/info/api/Addon_Webcam.md#getframeparturl) | [`GetFrameURL()`](/_articles/info/api/Addon_Webcam.md#getframeurl) | | [`GetSourceList()`](/_articles/info/api/Addon_Webcam.md#getsourcelist) | [`SelectSource()`](/_articles/info/api/Addon_Webcam.md#selectsource) | [`PauseVideo()`](/_articles/info/api/Addon_Webcam.md#pausevideo) | [`PlayVideo()`](/_articles/info/api/Addon_Webcam.md#playvideo) | | [`SetVideoRotateMode()`](/_articles/info/api/Addon_Webcam.md#setvideorotatemode) | [`StopVideo()`](/_articles/info/api/Addon_Webcam.md#stopvideo) | ## Dynamsoft.FileUploader ### Methods | [`Init()`](/_articles/info/api/Dynamsoft_FileUploader.md#init) | [`CreateJob()`](/_articles/info/api/Dynamsoft_FileUploader.md#createjob) | [`Run()`](/_articles/info/api/Dynamsoft_FileUploader.md#run) | [`Cancel()`](/_articles/info/api/Dynamsoft_FileUploader.md#cancel) | | [`CancelAllUpload()`](/_articles/info/api/Dynamsoft_FileUploader.md#cancelallupload) |