Science Memes

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Publishers Always Innovating (mander.xyz)

submitted 2 months ago by [email protected] to c/[email protected]

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[–] [email protected] 2 points 2 months ago (2 children)

Yes, PDFs are much more permissive and may not have any semantic information at all. Hell, some old publications are just scanned images!

PDF -> semantic seems to be a hard problem that basically requires OCR, like these people are doing

[–] [email protected] 2 points 2 months ago

Oh nice, thanks for sharing that project. I haven't heard of it before!

[–] thevoidzero 1 points 2 months ago

Not just semantics. PDFs doesn't even have segmentations like spaces/lines/paragraph. It's just text drawn at locations the text processor/any other softwares inserted into. Many pdf editor softwares just detect the closeness of the characters to group them together.

And one step further is you can convert text to path, which basically won't even have glyph (characters) info and font info, all characters will just be geometric shapes. In that case you can't even copy the text. OCR is your only choice.

PDF is for finalizing something and printing/sharing without the ability to edit.