Re: Ghostscript and new PDF interpreter

[Jonas Hahnfeld]

On Thu, 2023-01-05 at 20:56 +0000, Werner LEMBERG wrote:
> > > On the other hand, GS's new PDF engine no longer contains a PS
> > > interpreter; it is possible that `extractpdfmark` doesn't work
> > > anymore, and we have to find something new...
> > 
> > This is wrong, or at least the new PDF *interpreter* (which is, in
> > my understanding, not to be confused with the PDF driver to output
> > PDF) in itself is not to blame here: The new interpreter was
> > already enabled by default in Ghostscript 9.56 and this version
> > still works perfectly fine, yielding small PDF sizes together with
> > extractpdfmark.
> 
> Yes, you get small files, BUT: If I compile LilyPond out of the box
> using GS version 9.56.1 or 10.0.0 together with `extractpdfmark`, I
> get PDF files with many hyperlinks gone.  I've just tried compilation
> again with current git: `notation.pdf` is about 6MByte and doesn't
> contain any internal links: just try the table of contents.  For me,
> this looks like the PDF interpreter ignoring `notation.pdfmark`.
> 
> Jonas, how do you compile?  Do you get something better?

No, I also get this. But my conclusion still stands, I don't see an
immediate connection between the new PDF interpreter and file size
increase (this is what "perfectly fine" was referring to).

signature.asc
Description: This is a digitally signed message part