> the PDF is not a format fit for sharing, discussing, and reading on the web. PDFs are (mostly) static, 2-dimensional and non-actionable objects. It is not a stretch to say that a PDF is merely a digital photograph of a piece of paper. It is too far a stretch, murdering the poor subject: PDFs are the best format available for long-term information, such as research papers. They have the advantages of digital data: S…
None of those virtues hold in practice. I've worked both at public library digitization efforts and machine learning companies that did document ingestion and analytics. You always OCR the PDF visuals to get the text, because that's the only thing reliable about PDF. Everything else is often wrong, broken, or non-existent. By separating the meaning from the visual representation there is no incentive to keep the invi…
>> Searchable, copy-able, transmittable, and data is extractable. They are also an open format, don't rely on a central service to be available, and they preserve presentation across platforms. They have metadata, and are annotatable and reviewable. And the PDF format is the best for long-term preservation, carefully designed to be readable in 50 years - partly because they preserve presentation across platforms - and that includes the metadata, annotations, and reviews.
> None of those virtues hold in practice.
> You always OCR the PDF visuals to get the text, because that's the only thing reliable about PDF. Everything else is often wrong, broken, or non-existent.
Which don't hold in practice? Are they not searchable? Is presentation not preserved? I use a lot of PDFs and they hold for me. PDFs are very popular, so they must work pretty well.
> SVG
Is there a standard way to do review and annotation, and is presentation preserved, for example when printing? Also, PDFs contain various image formats; do they contain SVG?