How to cut blank pages from pdf (base64)?

Question

PHP

Tell me please.
There is xml with base64 encoded pdf files.
There are empty pages in these files (in the middle), how to cut these pages at the stage while the files are still in base64.
Is this even possible? Couldn't find anything like this on google.

Answer 1

no way, pdf is a binary format, there are separate libraries for working with the format
to automatically cut out white pages, I think it won’t be able to, you need to either specify the pages specifically, or somehow determine that the page is empty ...