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avoid OCR on non-image PDF files #28

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jampy opened this issue Aug 19, 2020 · 1 comment · May be fixed by #58
Open

avoid OCR on non-image PDF files #28

jampy opened this issue Aug 19, 2020 · 1 comment · May be fixed by #58

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@jampy
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jampy commented Aug 19, 2020

It appears that this app uses OCR even if the PDF file is not a scanned-type.

For example, I have a fresh Nextcloud installation and I see php occ fulltextsearch:index taking a lot of time processing Nextcloud Manual.pdf (a 99 pages PDF that comes with Nextcloud) and tesseract is working hard scanning it... That's simply useless.

I would suggest checking if the PDF contains and text nodes and avoid Tesseract in that case.
@XueSheng-GIT
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This still seems to be an issue. I'm on NC23.0.3 with fulltextsearch tesseract 22.0.0.
Most of my PDF files do contain a text layer, but all PDFs seem to be processed by tesseract which seems to be a waste of resources.
Any easy way to detect whether a PDF does contain a text layer and just skip those?

@youduda youduda linked a pull request Aug 1, 2023 that will close this issue
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Add feature to skip OCR on PDF files with text youduda/files_fulltextsearch_tesseract
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@jampy @XueSheng-GIT