How can I know more technical details of pdf

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How can I know more technical details of pdf #311

Closed sayhei closed 4 years ago

sayhei commented 4 years ago

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

gunnsth commented 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).