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Quoth · 01-09-2020, 06:13 AM

I find most of my PDFs need 10". Some need larger to to be comfortable, like an external screen on laptop turned to Portrait. Years ago I did this with a 1600 x 1200 CRT, easier with an LCD monitor. Most OS can rotate the image on external screen, nearly for 20 years.

Certainly some work now on the 7" libra compared to 6" PW3. The 9.7" Kindle DXG was bought for PDFs and was useless because it was too slow and too low a resolution.

There are essentially two main kinds of PDF: Ones that are primarily a scan (though there might be an OCR layer for search) and ones that are exports from wordprocessing or other publishing source.
Since the idea of a page size and fix layout is inherent, and it's an envelope with instructions how to render identically on any printer the result of any PDF resizing, trimming or attempting to flow is variable from acceptable to disastrous. It's PURELY intended for transfer to paper and preview on a screen. It's not an ebook format.

Thus I didn't bother spending €100 extra for an 8" Forma over a 7" Libra when updating from the original 6.8" Aura H2O to get better resolution and page turn buttons. The Libra does do scanned PDFs very much faster (the H2O too slow to use on some suitable to read), however even with trimming, processing etc most of my PDFs still can't be used on it. You need a decent 10" or ideally 13" to 14" tablet to manage all PDFs, ESPECIALLY scientific papers, Magazines and larger format text books. Zoom and Pan is very painful on a multicolumn 100 page magazine.
You'd only look up a manual or datasheet with Pan & Zoom, not actually read loads of pages. Fortunately most of the thick operator manuals for small complicated gadgets with massively unituitive multilayer menus on small two line text displays are A5 size or less so work on the Aura H2O and now better on the Kobo Libra.
A decent Lenovo 10" tablet cost me less than €120 just after Christmas and I'd already bought a 256 G micro SDXC for my 10" Windows 10 Atom tablet, which is garbage in comparison and was slower to turn PDF pages than the Libra!

01-09-2020, 06:13 AM	#24
Quoth Still reading Posts: 14,427 Karma: 107078855 Join Date: Jun 2017 Location: Ireland Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper	I find most of my PDFs need 10". Some need larger to to be comfortable, like an external screen on laptop turned to Portrait. Years ago I did this with a 1600 x 1200 CRT, easier with an LCD monitor. Most OS can rotate the image on external screen, nearly for 20 years. Certainly some work now on the 7" libra compared to 6" PW3. The 9.7" Kindle DXG was bought for PDFs and was useless because it was too slow and too low a resolution. There are essentially two main kinds of PDF: Ones that are primarily a scan (though there might be an OCR layer for search) and ones that are exports from wordprocessing or other publishing source. Since the idea of a page size and fix layout is inherent, and it's an envelope with instructions how to render identically on any printer the result of any PDF resizing, trimming or attempting to flow is variable from acceptable to disastrous. It's PURELY intended for transfer to paper and preview on a screen. It's not an ebook format. Thus I didn't bother spending €100 extra for an 8" Forma over a 7" Libra when updating from the original 6.8" Aura H2O to get better resolution and page turn buttons. The Libra does do scanned PDFs very much faster (the H2O too slow to use on some suitable to read), however even with trimming, processing etc most of my PDFs still can't be used on it. You need a decent 10" or ideally 13" to 14" tablet to manage all PDFs, ESPECIALLY scientific papers, Magazines and larger format text books. Zoom and Pan is very painful on a multicolumn 100 page magazine. You'd only look up a manual or datasheet with Pan & Zoom, not actually read loads of pages. Fortunately most of the thick operator manuals for small complicated gadgets with massively unituitive multilayer menus on small two line text displays are A5 size or less so work on the Aura H2O and now better on the Kobo Libra. A decent Lenovo 10" tablet cost me less than €120 just after Christmas and I'd already bought a 256 G micro SDXC for my 10" Windows 10 Atom tablet, which is garbage in comparison and was slower to turn PDF pages than the Libra!