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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
}
Yes
No