PDF Usage Example

PDF support in this SDK allows you to quickly extract embedded images from a PDF file, correct them with Perfectly Clear, then replace the original images with the corrected version. The result will be a PDF file in the exact same structure as the original - but all the photos will be Perfectly Clear!

Access image files embedded in PDF files easily with our PFCPDFImageIterator, then use a PFCPDFImage and PFCImage to access the image itself.

The results will automatically be embedded back in the PDF file.

1. Create a PFCPDFImageIterator and load the PDF file

       PFCPDFImageIterator file;
   
       if(file.load(inputPath) != PFCPDFImageIterator::LoadStatus::Ok) {
           printf("Cannot load path %s\n", inputPath);
           return 1;
       }

2. Begin iterating over the images

       int i = 0;
       PFCENGINE *pEngine = PFC_CreateEngine();
   
       while(PFCPDFImage* pdfImage = file.nextImage()) {

3. Create a PFCImageFile from the extracted image

           PFCImageFile* imgFile = pdfImage->imageFile;
           printf("  working on image %d\n", i);
   

   Then correct the PFCImageFile as normal
4. Once done with all embedded images, save the resulting PDF:

       if(file.save(outputPath) != PFCPDFImageIterator::SaveStatus::Ok) {
           printf("Cannot save to %s\n", outputPath);
           return 1;
       }

   We provide full source code to a ready-to-run command line application to make it easy to get stated with PDF file processing.

Notes

• Images need to be embedded in a PDF file for them to be accessible to the SDK. "Flattened" PDFs are not supported.
  * Each image that is processed will be evaluated by our AI-based Clipart Detection. This will allow images for headings, borders, and other clipart to skip Perfectly Clear processing - ensuring these files look exactly as the customer intended. Control this detection method using the PFCREJECTOPTION flag.