Re:Show HN: PDFs that are readable by human eyes only
by jfk13 on Wednesday July 06, 2022 @12:15PM
(#32003076)
Yeah, that was not an accurate choice of terminology... as it says in the "more info" box,
> Resistant to Optical Character Recognition (OCR), most laypeople will need to print+rescan to OCR
If print+rescan (or equivalently, screen-grab+OCR) works, which it will, then it's hardly OCR-resistant!
The only thing this "blocks" is text extraction from the PDF with things like copy/paste or pdftotext/html/whatever conversion tools, which will "see" the codepoints used rather than the glyph images.
> Resistant to Optical Character Recognition (OCR), most laypeople will need to print+rescan to OCR
If print+rescan (or equivalently, screen-grab+OCR) works, which it will, then it's hardly OCR-resistant!
The only thing this "blocks" is text extraction from the PDF with things like copy/paste or pdftotext/html/whatever conversion tools, which will "see" the codepoints used rather than the glyph images.