Product: Apryse SDK
Product Version: 12.0.0
Please give a brief summary of your issue:
Overprint is not rendered correctly during rasterization
Please describe your issue and provide steps to reproduce it:
When rasterizing the PDF, overprint is not rendering correctly on certain parts of the output image. The problem file is attached, along with the outputted image, and a marked version of the image with the problematic areas.
problem_file_cropped.pdf (3.1 MB)
Output:
Areas where overprint isn’t rendered correctly:
The marked areas don’t have the white overprint
Adobe Acrobat is able to render the overprint correctly.
Please provide a link to a minimal sample where the issue is reproducible:
We are using PDFRasterizer but the issue is reproducible with the PDFDraw sample code that is provided by Apryse.
void drawPage()
{
PDFNet::Initialize(LicenseKey);
string inputPath = "problem_file_cropped.pdf";
string outputPath = "problem_file_cropped.png";
PDFDraw draw; // PDFDraw class is used to rasterize PDF pages.
// A) Open the PDF document.
PDFDoc doc(inputPath.c_str());
// Initialize the security handler, in case the PDF is encrypted.
doc.InitSecurityHandler();
// B) The output resolution is set to 300 DPI.
draw.SetDPI(300);
draw.SetOverprint(PDFRasterizer::e_op_on); // set overprint on
// C) Rasterize the first page in the document and save the result as PNG.
draw.Export(doc.GetPageIterator().Current(), outputPath.c_str());
}