Closed sayhei closed 4 years ago
@sayhei The best reference is the PDF reference: https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf
There is a newer version PDF 2.0 ISO standard available for purchase: https://www.iso.org/standard/63534.html
We find that the PDF32000_2008.pdf is sufficient in most cases, except in cases where the standard has been updated (such as encryption types etc).
When I want to help solve the problems I have found, I find that I know too little about pdf. Are there any books or articles that introduce more details of pdf technology