Re: windows to linux charset issue for PDF annotation

I think that text annotations are just text without a font, and the PDF
viewer decides how to display them.
I am looking at "PDF 32000-1:2008", section 12.5.6.4 Text Annotations,
page 394
https://www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/PDF32000_2008.pdf
Specifying fonts in resources in annotations might not be valid.
https://stackoverflow.com/questions/24205137/adding-freetext-annotation-to-pdf
Do the annotations view correctly with Acrobat?
I think that evince and okular both read PDFs with poppler.
Can you post a small PDF with an annotation that does not view correctly?
Regards, William


On Fri, May 29, 2020 at 5:33 PM John Jason Jordan <[email protected]> wrote:

> On Fri, 29 May 2020 18:00:42 +0200
> JLuc <[email protected]> dijo:
>
> >It's about a scribus created pdf but this is not strictly related to
> >scribus : A friend on windows has proofread and annotated a scribus
> >PDF document. When opening it on Ubuntu, some of the notes are OK
> >readable, but some other are scrambled and some other seem to be cut
> >in the middle of the text.
> >
> >It could be related to notes having accenctuated or special characters
> >as " or « because none of the readable notes has such accenctuated
> >characters afaict. I've tried with Evince and Okular.
> >
> >Do you have an advice on how to access correctly these notes on linux ?
> >(Or on how to fix that in the annotation tool on windows ?)
>
> JLuc,
>
> When characters don't appear correctly in a PDF it's usually a font
> issue. I'd start by looking at the Properties of the PDF document to
> see what fonts are used in it and if they are embedded or not. The best
> practice is to embed all fonts with the program that created the PDF,
> then make sure that those fonts are installed on the Linux computer
> that is being used to view the PDF file.
>
> Once you know which fonts are in the PDF document you might also use
> Fontmatrix or other font viewer to see if the fonts actually contain
> the characters that you think they do. If the PDF file was created on a
> Windows or Mac computer the operating system sometimes makes up a
> character for viewing on screen when the character is actually missing
> in the font.
>
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