Quote:
Originally Posted by crt
But when it comes to scanned text PDFs, can it reflow the text without doing so with the figures, and also allow you to increase/decrease and embolden the font size? I have only seen Duokan 2014 able to do so (and very well most of the times).
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There is no need for reflowing A4/letter sized pdf on 10" e-ink though, because if zoomed in without margins (in landscape) we can even get slight magnification (compared to the paper) on Kindle DX or M96, no matter one-column, two-column or multi-column pdf.
Two-column pdf (scanned image or textual) can also be read using two-column mode, if we want even bigger letters.
Quote:
Originally Posted by japinder
Hi crt,
There is an Duokan app on Android, but it doesn't reflow scanned PDFs on my M96.
Scanned PDFs only contain images, no text. So how can it be reflowed?  |
e.g. if our e-reader's app is OCR-ing it page by page as we read it (or using already existent OCR-layer), reflowing and showing OCR-layer only (not pdf image itself), but it's not genuine scan reflow.
Scanned PDF (with or without OCR layer) can genuinely be reflowed using k2pdfopt, beforehand on PC.
Scanned PDF is being cut like a paper pdf would be cut using pair of scissors and then those parts pasted together depending on the targeted screen size.
http://www.willus.com/k2pdfopt/
Another benefit of using k2pdfopt (compared to the reflowing pdf on e-reader itself on the fly) is a lot faster flipping through such reflowed scans(or reflowed textual pdf too) and retained pictures and tables (because e-reader doesn't need to compute anything but just show already reflowed and optimized pages for its size and resolution) .
Also, owners of Kindle or Kobo can jailbreak it and install KPV(kindlepdfviewer) thereon, which uses k2pdfopt's scan reflow module.
It won't be as quick to flip through pdf, though, because scanned pages are reflowed on the fly page by page, but for normal reading, page by page, it should be ok because next page shall be refowed as we read the previous one, otherwise we should wait 5-10 seconds then flip quickly through reflowed page and then wait another 5-10 seconds for the next scanned page to be reflowed.
https://www.youtube.com/watch?v=6PauN_9O4dM
https://www.mobileread.com/forums/sho...d.php?t=157047
There is also attempt to port KOReader(KPV for touch Kindles) on Android.
https://www.mobileread.com/forums/sho...d.php?t=240617