PDFRasterDPI
PDFRasterDPI
defines the resolution used for rasterizing a PDF file. It is defined as below:
Value Type | Value Range | Default Value | Template Structure Type |
---|---|---|---|
int | [100, 3000] | 300 | ImageParameter |
Remarks
When decoding a PDF file using DecodeFile
method, the library will convert the pdf file to image(s) first, then perform barcode recognition.
Setting Methods
PDFRasterDPI
is supported to be set through RuntimeSetting
or JSON template.
As PublicRuntimeSettings
Member
PDFRasterDPI
can be set dynamically during runtime as a member of PublicRuntimeSettings
struct.
Code Snippet in C++
//...other codes
PublicRuntimeSettings* pSettings = new PublicRuntimeSettings;
int errorCode = reader->GetRuntimeSettings(pSettings);
pSettings->pdfRasterDPI = 300;
reader->UpdateRuntimeSettings(pSettings);
delete pSettings;
//...other codes
See Also
PublicRuntimeSettings:
JavaScript | C | C++ | .NET | Python | Java | Java-Android | Objective-C & Swift
As JSON Parameter
PDFRasterDPI
as a JSON parameter is a number value defined as below.
Key Name | Key Value |
---|---|
PDFRasterDPI | A number from [100, 3000] |
JSON Example
{
"PDFRasterDPI": 300
}