M92 Fails to open a PDF file

FunThomas · 03-16-2014, 06:18 AM

I wanted to read a Diary of a Wimpy Kid, but my Onyx M92 fails to open this file. I have upgraded firmware, but problem persists. I was wondering if it could be caused by a weird font used for this PDF file (see attachement). According to Foxit Reader there are 2 fonts used:

WimpyKidDialogue (Embeded Subset), True Type (CID), Encoding: Identity-H
WimpyKid (Embeded Subset), True Type (CID), Encoding: Identity-H

I also tried some online PDF validators, but there were no problems found for this PDF.
Thanks for your help.

Mono · 03-16-2014, 08:30 AM

It does not open the pdf file OR it opens the file, but the screen is blank?

Identity-H encoding is maybe the thing that causes a problém. Try to convert pdf so that it does not use Identity-H encoding.

You would have to probably print it to a virtual pdf printer (like e.g. Bullzip pdf printer), or change those two fonts to some other with e.g. Unicode encoding.

FunThomas · 03-17-2014, 07:13 AM

Thanks for tips. I printed the PDF file using Foxit Reader, but it didn't help. M92 seems to be opening the file, wheel is spinning for a while, but than it returns back to the File browser.
I don't know how to change the encoding, but printing the PDF to a virtual printer turns all text to bitmaps, so it shouldn't matter.

Mono · 03-17-2014, 09:34 AM

In that case, I do not know, what is the problém.

Try print PDF as bitmap if Foxit allows that and if you can choose it somewhere in setup, then not more than say 150 dpi. (Foxit might print pdf as vectors by default. It should be OK for M92, but it might cause problems....)

I do not have any problems with scanned texts. Even big books.

FunThomas · 03-17-2014, 05:04 PM

It seems, problem is solved. It looks like the only problem was, that filename contained # (Diary of a Wimpy Kid #1.pdf). After renaming the PDF file, everything works smoothly.
Thanks for your help.
By the way, is this a known issue (filename shouldn't contain #)?

Mono · 03-18-2014, 10:06 AM

I do not know, that it might be an issue. I do not recollect anyone would mention it.

markom · 03-18-2014, 10:25 AM

This guy has solved a similar problem recently by changing the pdf file name produced by his scanner.

Probably by omitting # or some other special character in the new name.

https://www.mobileread.com/forums/sho...d.php?t=231530

03-18-2014, 10:25 AM	#7
markom Banned Posts: 488 Karma: 1080260 Join Date: Sep 2012 Device: sony prs t1 kindle dx ipad	This guy has solved a similar problem recently by changing the pdf file name produced by his scanner. Probably by omitting # or some other special character in the new name. https://www.mobileread.com/forums/sho...d.php?t=231530 Last edited by markom; 03-18-2014 at 10:36 AM.

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03-16-2014, 06:18 AM	#1
FunThomas Junior Member Posts: 4 Karma: 10 Join Date: Feb 2013 Location: Slovakia Device: Onyx Boox M92 White	M92 Fails to open a PDF file I wanted to read a Diary of a Wimpy Kid, but my Onyx M92 fails to open this file. I have upgraded firmware, but problem persists. I was wondering if it could be caused by a weird font used for this PDF file (see attachement). According to Foxit Reader there are 2 fonts used: WimpyKidDialogue (Embeded Subset), True Type (CID), Encoding: Identity-H WimpyKid (Embeded Subset), True Type (CID), Encoding: Identity-H I also tried some online PDF validators, but there were no problems found for this PDF. Thanks for your help. Attached Thumbnails

03-16-2014, 08:30 AM	#2
Mono Mono Posts: 699 Karma: 13333 Join Date: Jan 2012 Device: Boox M92	It does not open the pdf file OR it opens the file, but the screen is blank? Identity-H encoding is maybe the thing that causes a problém. Try to convert pdf so that it does not use Identity-H encoding. You would have to probably print it to a virtual pdf printer (like e.g. Bullzip pdf printer), or change those two fonts to some other with e.g. Unicode encoding.

03-17-2014, 07:13 AM	#3
FunThomas Junior Member Posts: 4 Karma: 10 Join Date: Feb 2013 Location: Slovakia Device: Onyx Boox M92 White	Thanks for tips. I printed the PDF file using Foxit Reader, but it didn't help. M92 seems to be opening the file, wheel is spinning for a while, but than it returns back to the File browser. I don't know how to change the encoding, but printing the PDF to a virtual printer turns all text to bitmaps, so it shouldn't matter.

03-17-2014, 09:34 AM	#4
Mono Mono Posts: 699 Karma: 13333 Join Date: Jan 2012 Device: Boox M92	In that case, I do not know, what is the problém. Try print PDF as bitmap if Foxit allows that and if you can choose it somewhere in setup, then not more than say 150 dpi. (Foxit might print pdf as vectors by default. It should be OK for M92, but it might cause problems....) I do not have any problems with scanned texts. Even big books.

03-17-2014, 05:04 PM	#5
FunThomas Junior Member Posts: 4 Karma: 10 Join Date: Feb 2013 Location: Slovakia Device: Onyx Boox M92 White	It seems, problem is solved. It looks like the only problem was, that filename contained # (Diary of a Wimpy Kid #1.pdf). After renaming the PDF file, everything works smoothly. Thanks for your help. By the way, is this a known issue (filename shouldn't contain #)?

03-18-2014, 10:06 AM	#6
Mono Mono Posts: 699 Karma: 13333 Join Date: Jan 2012 Device: Boox M92	I do not know, that it might be an issue. I do not recollect anyone would mention it.