How to create PDF without DRM?

ewiplayer · 11-11-2008, 04:41 PM

Hi folks,

I've got Acrobat 9 and I'm trying to experiment with a CHM -> HTML -> PDF -> LRF conversion, but I'm hitting a problem... The PDF I create is flagged as having DRM by Calibre. (Before you ask, yes I have tried CHM -> HTML -> LRF but it's not formatting quite right and I'd like to see what pdf2lrf does).

I can't figure out for the life of me how to get Acrobat 9 to save without putting anything in that makes Calibre choke. Does anyone know how to do this?

Thanks,
EWIPlayer

bill_mchale · 11-11-2008, 04:50 PM

Well, I am not sure what Acrobat is doing to your files, but I would suspect that if the html doesn't format it quite right, then the PDF isn't going to either, not unless it overrides the stylesheet that is used in the html file.

That being said, I recently downloaded princexml (just search on princexml) and I found it works rather well at converting html files into PDF's sized for the screen size of my reader. The biggest issue I had was that I had to set maximum height for the images so that the images would not over fill the page.

--
Bill

ewiplayer · 11-11-2008, 04:55 PM

Quote:

Originally Posted by bill_mchale

Well, I am not sure what Acrobat is doing to your files, but I would suspect that if the html doesn't format it quite right, then the PDF isn't going to either, not unless it overrides the stylesheet that is used in the html file.

That being said, I recently downloaded princexml (just search on princexml) and I found it works rather well at converting html files into PDF's sized for the screen size of my reader. The biggest issue I had was that I had to set maximum height for the images so that the images would not over fill the page.

--
Bill

Yeah you might be right about the formatting... I just wanted to experiment (my PRS 700 won't be here for 2 weeks). I'll have a look for princexml and see what it can do.

Incidentally, the properties on the PDF as created by Acrobat have "no security" and everything is allowed (looking at the file properties). But calibre still thinks there's DRM there... painful.

Thanks

kovidgoyal · 11-11-2008, 05:34 PM

Convert to EPUB instead, you'll get much closer fidelity to the original

=X= · 11-11-2008, 05:44 PM

Quote:

Originally Posted by ewiplayer

Hi folks,

I've got Acrobat 9 and I'm trying to experiment with a CHM -> HTML -> PDF
I can't figure out for the life of me how to get Acrobat 9 to save without putting anything in that makes Calibre choke. Does anyone know how to do this?

Thanks,
EWIPlayer

If you have the ability to make a PDF stop there. Create the PDF with dimensions 120mm x 90mm and with 10mm border max (I'd go with 3mm).

There is no need to create an LRF. Your 700 will view PDF just fine, when PDF are created for the Readers they look fantastic.

=X=

ewiplayer · 11-11-2008, 05:58 PM

Quote:

Originally Posted by =X=

If you have the ability to make a PDF stop there. Create the PDF with dimensions 120mm x 90mm and with 10mm border max (I'd go with 3mm).

There is no need to create an LRF. Your 700 will view PDF just fine, when PDF are created for the Readers they look fantastic.

=X=

Ah cool. Thx. I noted that the LRF format appears to flip faster than PDF so I was going for the LRF conversion.

But I did find an answer: In OS X's 'preview' app I can simply save as PDF and that can then be parsed by pdf2lrf. Go figure

JSWolf · 11-11-2008, 06:00 PM

Quote:

Originally Posted by ewiplayer

Hi folks,

I've got Acrobat 9 and I'm trying to experiment with a CHM -> HTML -> PDF -> LRF conversion, but I'm hitting a problem... The PDF I create is flagged as having DRM by Calibre. (Before you ask, yes I have tried CHM -> HTML -> LRF but it's not formatting quite right and I'd like to see what pdf2lrf does).

I can't figure out for the life of me how to get Acrobat 9 to save without putting anything in that makes Calibre choke. Does anyone know how to do this?

Thanks,
EWIPlayer

Why not CHM -> HTML -> LRF using html2lrf?

ewiplayer · 11-11-2008, 06:12 PM

Quote:

Originally Posted by JSWolf

Why not CHM -> HTML -> LRF using html2lrf?

I already covered that one in my original post... doesn't format well.

=X= · 11-11-2008, 06:26 PM

Quote:

Originally Posted by ewiplayer

Ah cool. Thx. I noted that the LRF format appears to flip faster than PDF so I was going for the LRF conversion.

Totally understand. It's a trade off speed vs Format.

Quote:

Originally Posted by ewiplayer

But I did find an answer: In OS X's 'preview' app I can simply save as PDF and that can then be parsed by pdf2lrf. Go figure

Note here that PDFLRF converts the PDF to an image so you will be blowing up the file size of the PDF. But this is also a good option

I'd recommend creating an PDF and an LRF and see what you like the best.

=X=

ewiplayer · 11-11-2008, 06:38 PM

Quote:

Originally Posted by kovidgoyal

Convert to EPUB instead, you'll get much closer fidelity to the original

Actually, epub is better, but they're both pretty bad. The document in question has a lot of diagrams, tables and sections of code. PDF is the only thing that looks remotely good... so even if it means a slower response time on the doc, I'll probably stick with PDF.

Thanks for the tips. This has been a good experiment!

ewiplayer · 11-11-2008, 06:39 PM

Quote:

Originally Posted by =X=

Totally understand. It's a trade off speed vs Format.

Note here that PDFLRF converts the PDF to an image so you will be blowing up the file size of the PDF. But this is also a good option

I'd recommend creating an PDF and an LRF and see what you like the best.

=X=

Yup... it looks like the tradeoff is going to be to trade speed for presentation. LRF and EPUB are far from the quality of the PDF.

Thx!

11-11-2008, 04:41 PM	#1
ewiplayer Enthusiast Posts: 47 Karma: 90 Join Date: Nov 2008 Device: Sony PRS-700	How to create PDF without DRM? Hi folks, I've got Acrobat 9 and I'm trying to experiment with a CHM -> HTML -> PDF -> LRF conversion, but I'm hitting a problem... The PDF I create is flagged as having DRM by Calibre. (Before you ask, yes I have tried CHM -> HTML -> LRF but it's not formatting quite right and I'd like to see what pdf2lrf does). I can't figure out for the life of me how to get Acrobat 9 to save without putting anything in that makes Calibre choke. Does anyone know how to do this? Thanks, EWIPlayer

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11-11-2008, 04:50 PM	#2
bill_mchale Wizard Posts: 1,451 Karma: 1550000 Join Date: Sep 2008 Location: Maryland, USA Device: Nook Simple Touch, HPC Evo 4G LTE	Well, I am not sure what Acrobat is doing to your files, but I would suspect that if the html doesn't format it quite right, then the PDF isn't going to either, not unless it overrides the stylesheet that is used in the html file. That being said, I recently downloaded princexml (just search on princexml) and I found it works rather well at converting html files into PDF's sized for the screen size of my reader. The biggest issue I had was that I had to set maximum height for the images so that the images would not over fill the page. -- Bill

11-11-2008, 05:34 PM	#4
kovidgoyal creator of calibre Posts: 43,844 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Convert to EPUB instead, you'll get much closer fidelity to the original

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