Resaving Digitally signed Secure PDF

Hello,

If we resave a digitally signed secure PDF using RasterEngine; would we be able to make the PDF unsecure i.e. would the PDF be open?

Also can we use Raster engine to:
1. Embed any fonts in the resaved PDF file?
2. Flatten the PDF file for print purposes?

The version we are using is v16.5

Thanks in advance

Hello,

Unless you put a user or owner password when writing the new PDF, yes, I would expect the outputted PDF to be open. LEADTOOLS 16.5 does not have support for PDF Signatures. This support was added with LEADTOOLS 19 using the PdfDocument and PDFFile classes.

With LEADTOOLS 16.5, you can create PDF/A files. These files have the font information embedded in them.

Loading a PDF with RasterCodecs would rasterize/flatten it. You could then use the RasterImagePrinter to send this image data to the printer.

Thanks Walter for the reply. So using v16.5; can we create a PDF/A file from an existing PDF file that is password protected? Our objective of trying to create a new PDF file from an existing PDF file is to unlock the file, embed the fonts and flatten it before we send the new PDF file to another system for print purposes.

Appreciate your time.

Yes, you can specify the password to prior to loading the source PDF using the CodecsPdfLoadOptions.Password property.

For setting a new password for the PDF/A file, set either the CodecsPdfSaveOptions.OwnerPassword and/or CodecsPdfSaveOptions.UserPassword properties. You should also set the CodecsPdfSaveOptions.SavePdfA property to true;

You can find some sample code illustrating these properties being used with the CodecsPdfOptions class.