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How to remove drm from pdf?

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Thread replies: 5
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Anonymous
How to remove drm from pdf? 2016-08-14 06:13:48 Post No. 172928
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How to remove drm from pdf? Anonymous 2016-08-14 06:13:48 Post No. 172928 [Report]
I downloaded a pdf, but I want to read it on my kindle. I transferred it, but the fonts were too small to read. I tried converting it to a different format, but I got an error message saying that the converter failed to remove the drm-protection. I have downloaded and tried several tools that claim to remove drm from pdf, but none of the have worked. Does anyone here know of a tool that is able to remove drm from pdf?
>>
Anonymous 2016-08-14 06:18:17 Post No.172933
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Anonymous 2016-08-14 06:18:17 Post No.172933 [Report]
>>172928
"Install Callibre, install DeDRM tools. It contains ineptpdf which removes ADEPT FileOpen protection from PDFs, hopefully that's the right sort of DRM."

Found online, no clue if you've tried.

GL!
>>
Anonymous 2016-08-14 06:21:46 Post No.172934
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Anonymous 2016-08-14 06:21:46 Post No.172934 [Report]
>>172933
Thanks, I will try that.
>>
Anonymous 2016-08-14 10:49:39 Post No.173026
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Anonymous 2016-08-14 10:49:39 Post No.173026 [Report]
I was able to remove the DRM and convert the file, unfortunately the converted file contained so many errors that it was almost impossible to read. These errors ranged from characters replaced with question marks to double line changes in the middle of sentences.
>>
Anonymous 2016-08-15 01:46:26 Post No.173374
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Anonymous 2016-08-15 01:46:26 Post No.173374 [Report]
Use qpdf

qpdf.exe --decrypt input.pdf output.pdf
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