Horst Rutter comments

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                                            Horst Rutter

decryptAESBytes: Ciphertext too short

what is the output of: `pdfcpu val -v tmp_centered.pdf`

Retrieve image dimensions in PDF user space units

Calculating the final image dimensions in user space is a deep dive into the rendering step of page content, remember an image can be part of a form which may...

bookmark json schema

Nope but there is the PDF spec, bookmarks are recursive: Checkout: `samples/bookmarks/bookmarks.json` `api/test/bookmarks_test.go`

Unable to render Japanese characters with custom fonts (e.g., NotoSansJP)

So it is working when you use the CLI but not when you use the API, correct?

Adding watermark erases pdf content

Check out: api/test/stamp_test.go and its results at samples/stamp/* and samples/watermark/* Remember that watermarks are rendered prior to any other page content whereas stamps are rendered last.

Unable to render Japanese characters with custom fonts (e.g., NotoSansJP)

api.AddWatermarks should load a new default configuration which in turn should load your user fonts. I will need a stacktrace in order to provide a fix.

Unable to render Japanese characters with custom fonts (e.g., NotoSansJP)

This should be fixed! Please check!