#91 closed enhancement (fixed)
encrypted documents
| Reported by: | guest | Owned by: | |
|---|---|---|---|
| Priority: | minor | Milestone: | 1.4.0 |
| Component: | Plugin: PDF | Version: | 1.0 Beta 3 |
| Keywords: | Cc: |
Description
is it possible to enhance the pdf part, so that encrypted documents could be read?
Change History (16)
comment:1 by , 18 years ago
comment:2 by , 18 years ago
where can i send the file? trac doesn't allow me to upload the file. the filesize is 3MB.
comment:6 by , 18 years ago
i don't know how it is done in acrobat. i do not need a password for it. it is a e-book which i purchased. and probably something got installed on the win pc while i was downloading the pdf
comment:7 by , 18 years ago
When I told about encrypted documents support, I mean password-protected encrypted documents.
comment:8 by , 18 years ago
so this kind of documents will not be supported? i guess it's necessary, because more and more e-books will be around
comment:9 by , 18 years ago
Lucide's PDF plugin uses poppler library (http://poppler.freedesktop.org/) for pdf rendering. So we can support only features which poppler supports.
Currently, I know nothing about Acrobat's way to decrypt your PDF and which keys it uses. I tried under Windows and just got error "Document is encrypted". We will investigate, and if poppler have support for such PDFs - we will support them.
comment:10 by , 9 years ago
I have been able to open Acrobat 8 & 9 password-protected documents for some time. Is this still an issue with 1.3.5?
comment:11 by , 9 years ago
Just today, I encountered a PDF encrypted with AES-256 (Acrobat X or SecurityHandler V6). I was unable to open this (neither could qPDFView, for that matter, as poppler - even the latest version as of this writing - cannot).
References:
https://community.kde.org/GSoC/2015/Ideas#Project:_Implement_SecurityHandler_V6_in_Poppler
comment:13 by , 9 years ago
| Owner: | removed |
|---|
comment:15 by , 8 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
The file attached to:
https://bugs.freedesktop.org/show_bug.cgi?id=88151
opens fine under 1.3.6 beta (not as an encrypted file). Further,
EOS_7D_Mark_II_AF_guide_CUSA_9-2014.pdf, linked from the second link in comment:11, but retrieved from https://new.vk.com/doc-16750222_329709691?dl=d54464fcc9b59899fa, built as PDF 1.7, apparently using Adobe InDesign CC on Mac, with Adobe PDF Library 10.0.1, opens with no problem.
I can no longer locate the encrypted PDF which I referenced in comment:11, though I believe this has been addressed in the later poppler.
comment:16 by , 6 years ago
| Milestone: | Future → 1.4.0 |
|---|
Move closed tickets to completed milestone. Many of these were completed before 1.4.0
Of course, we will do that.
I don't have such documents, can you attach encrypted pdf document for testing?