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https://issues.apache.org/jira/browse/TIKA-3258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17259814#comment-17259814
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Tim Allison edited comment on TIKA-3258 at 1/6/21, 3:44 PM:
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[~adidier], y, that's exactly the type of refinement we'd want to consider 
adding to {{AUTO}} mode.  The current method is based on input from 
[~lfcnassif] IIRC...

Improvements to {{AUTO}} are a separate issue, though.  Are you ok with this 
choice default? 

I just opened TIKA-3264 to capture that discussion.


was (Author: talli...@mitre.org):
[~adidier], y, that's exactly the type of refinement we'd want to consider 
adding to {{AUTO}} mode.  The current method is based on input from 
[~lfcnassif] IIRC...

Improvements to {{AUTO}} are a separate issue, though.  Are you ok with this 
choice default? 

> Run OCR on PDFs with 'auto' mode as default in Tika 2.0.0
> ---------------------------------------------------------
>
>                 Key: TIKA-3258
>                 URL: https://issues.apache.org/jira/browse/TIKA-3258
>             Project: Tika
>          Issue Type: Improvement
>            Reporter: Tim Allison
>            Priority: Major
>
> In Tika 1.x we currently have the fiddly mess that users have to configure 
> OCR of PDFs...it doesn't just work out of the box.  We did this initially 
> because of concerns (well, reality) of crazy resource consumption for some 
> PDFs that can have thousands of images per page that are stitched together to 
> make a reasonable composite.
> Since then, we've added option 2, which renders each page and then runs OCR 
> on that composite image rather than running OCR on each inline image...so 
> we'll only call tesseract once per page.  Second, we've added an 'auto' mode 
> that runs OCR only on pages that didn't have much text extracted.  While 
> there is plenty of room for improvement in the 'auto' heuristic, I think we 
> should move to running OCR automatically on PDFs as default in 2.0.0. 
> Under this proposal, users will now have to disable OCR if they have 
> tesseract installed but don't want to run it on PDFs.
> This will be a breaking change, and we'll make sure to document it early and 
> often in the "Breaking Changes" sections of the readme.txt.



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