Is there a list of which devices can read which pdfs?

MarjaE · 07-18-2020, 11:16 PM

For example, Kindle 2 and Kindle Dx can show:

* Most pdfs up to 1.4 without trouble, and 1.5+ without passwords by dropping newer image formats.

* Note that Internet Archive scans routinely use newer image formats, and you need Willus's k2pdfopt to make them readable.

* Ghostscript output up to 1.3 without trouble, and 1.4+ with trouble with overlapping images.

* Note that when pdfs rely on layers, this can't remove layers to make text readable.

Saying "these can show pdfs" isn't enough information, since they require so much pre-processing for newer pdfs.

Saying "up to 1.4" is fairly accurate, except for Ghostscript output.

Saying "yes, but trouble with transparency, and they can't show jpx or jbig, layers, or files with passwords," would be more accurate.

DaleDe · 07-21-2020, 06:30 PM

Try our wiki PDF#PDF_Viewers. Add or fix anything that you need.

Dale

MarjaE · 07-21-2020, 09:47 PM

Thanks.

I can't see where I am to edit the tables. As it is, they don't say much about compatibility. For example, the Kindle Dx listing doesn't note that it can't handle password-protected pdfs, jpx images in pdfs, has trouble with transparency in pdfs processed in Ghostscript, etc.

None of the entries I've seen touch on jpx images.

DaleDe · 07-22-2020, 01:00 PM

Quote:

Originally Posted by MarjaE

Thanks.

I can't see where I am to edit the tables. As it is, they don't say much about compatibility. For example, the Kindle Dx listing doesn't note that it can't handle password-protected pdfs, jpx images in pdfs, has trouble with transparency in pdfs processed in Ghostscript, etc.

None of the entries I've seen touch on jpx images.

Tap the help button to learn how to edit the pages. It is best if you have a username in the wiki. There is always room for improvement.

Dale

07-18-2020, 11:16 PM	#1
MarjaE Guru Posts: 924 Karma: 53902736 Join Date: Jun 2015 Device: multiple	Is there a list of which devices can read which pdfs? For example, Kindle 2 and Kindle Dx can show: * Most pdfs up to 1.4 without trouble, and 1.5+ without passwords by dropping newer image formats. * Note that Internet Archive scans routinely use newer image formats, and you need Willus's k2pdfopt to make them readable. * Ghostscript output up to 1.3 without trouble, and 1.4+ with trouble with overlapping images. * Note that when pdfs rely on layers, this can't remove layers to make text readable. Saying "these can show pdfs" isn't enough information, since they require so much pre-processing for newer pdfs. Saying "up to 1.4" is fairly accurate, except for Ghostscript output. Saying "yes, but trouble with transparency, and they can't show jpx or jbig, layers, or files with passwords," would be more accurate.

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07-21-2020, 06:30 PM	#2
DaleDe Grand Sorcerer Posts: 11,470 Karma: 13095790 Join Date: Aug 2007 Location: Grass Valley, CA Device: EB 1150, EZ Reader, Literati, iPad 2 & Air 2, iPhone 7	Try our wiki PDF#PDF_Viewers. Add or fix anything that you need. Dale

07-21-2020, 09:47 PM	#3
MarjaE Guru Posts: 924 Karma: 53902736 Join Date: Jun 2015 Device: multiple	Thanks. I can't see where I am to edit the tables. As it is, they don't say much about compatibility. For example, the Kindle Dx listing doesn't note that it can't handle password-protected pdfs, jpx images in pdfs, has trouble with transparency in pdfs processed in Ghostscript, etc. None of the entries I've seen touch on jpx images.