Thread: which ereader can read scanned pdf like this?
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Old 01-03-2014, 08:16 PM   #16
ittiandro
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Join Date: Nov 2013
Device: JuliusvonJD
scanned PDF difficult to handle
Quote:
Originally Posted by markom View Post
We can use k2pdfopt app to adjust any pdf for any e-ink or lcd screen out there (relatively quickly and easily).

http://www.willus.com/k2pdfopt/

e.g. if it takes 3-5 seconds to turn the pdf page on our tablet or e-ink, it is probably due to the pdf compression method used or big page size (that would require more memory or faster processor).
Transforming such pdf using default settings in k2pdfopt will allow our tablet or e-ink to turn pdf pages in a second again.


As an answer to the original question; which ereader can read scanned pdf like this?

Kindle DX can easily and quickly read those double sided scannes, using installed kindlepdfviewer thereon and adjusting the horizontal scroll to maximum (two joystick pushes per double page) or using two-column mode.

But it is really matter of minutes or seconds for cutting those double sided scannes into a single page pdf, using Briss, Pdfscissors, k2pdfopt, Acrobat etc. and additional 20-30 minutes per the average book for quick OCR-ing (exact pdf image) in Acrobat, Abbyy Finereader etc. so that we can use dictionary, search function, highlighting and all the pdf zooming options we want.
Willus

I won't buy a Kindle DX because I just bought this D2-912 pad, which is more than a reader, just as good and cheaper.So may be I have to live with the problem, because after all it only affects some of my books Having said this, may be you can comment on the following points:
1. OCR procedure: I gather it recognizes the fonts of the image- PDF page, then it it converts the page to an editable TEXT format to finally convert it back again to a fully functional EPUB .
If I am right, what is the TEXT format I have to convert the original PDF-IMage in the 1st step : HTML, RTF? What software does it?
2. Cropping/Trimming: I gather by trimming/cropping blank spaces, the size of the page, therefore the fonts will increase. This may fix the problem, but it may be extremely time-consuming with hundred of pages, unless there is a software which allows to set the parameters once for all and it does the cropping automatically, for the whole book. Is there any such software?

3.Regarding k2pdfopt: I glanced at your site, but I am not too sure what it does. Is it an OCR based conversion software allowing to convert the image-PDF to TEXT and then back to fully functional PDF or EPUB, fixing the slow reading/opening of the current image-based PDF? Or is it a cropping/trimming software.

Bottom line, I want to have either a fast PDF speed like for ALL the other books or an equally fully functional EPUB format, allowing to increase/decrease the fonts size and to control the other settings as well.

Any suggestions?

Thanks

Ittiandro
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