pdf-tools
qpdf
pdf-tools | qpdf | |
---|---|---|
22 | 18 | |
550 | 3,052 | |
- | 2.2% | |
6.2 | 9.5 | |
19 days ago | 7 days ago | |
C | C++ | |
GNU General Public License v3.0 only | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
pdf-tools
- Google Scholar PDF Reader
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Issue with pdf-tools on 3k display
Hi, I bought a galaxy book 3 ultra, which comes with a 2880x1800 display with 120hz. I am having a hard time to use github.com/vedang/pdf-tools with it. Sometimes it works fine, but most of the time the scrolling of pdfs gets really slow. If I change the resolution to 1920x1200 it gets back to normal and scrolls smothly. I tried running both on xorg and wayland and got the same result. Also, I tried running on a fresh emacs installation with the only package being pdf-tools, and the issue is still there. Does anybody experienced something similar? I am using emacs 27.1 on PopOS 22.04.
- Ask HN: What's a good, privacy focused bookmark manager?
- pdf-view-midnight-minor-mode not working properly after updating packages
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Integrate Zotero pdf notes with org roam
An alternative is to open PDFs, from Zotero or from anywhere else, with Emacs' pdf-tools (https://github.com/vedang/pdf-tools). If you annotate the pdf, those annotations are part of the pdf. And you can also use org-noter (https://github.com/weirdNox/org-noter) and org-noter-pdftools (https://github.com/fuxialexander/org-pdftools; but see https://github.com/fuxialexander/org-pdftools/issues/93#issuecomment-1493314118 if you use the new org-noter from https://github.com/org-noter/org-noter).
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PDF Viewer that Compiles LaTeX Notes?
Possibly: Org-noter and/or PDF Tools.
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PDF viewing should work out of the box?
You can install pdf-tools https://github.com/vedang/pdf-tools
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Just started learning LaTeX. I have a few questions
If you want to avoid extra software from AUR, there's a plugin for Emacs called pdf-tools. Mind you will lose an option to forward/inverse search! AFAIK pdf-tools is supported in ArchLinux, so you could use already installed Emacs as a PDF viewer.
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how to run pdf-view by default (and not Docview)
Pdf-view let you annotate the document. See https://github.com/vedang/pdf-tools for more features. There are also quiet a few packages that work with pdf-tools.
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Share your workflows for highlighting books - roam compatible epub reader with highlighting? nov.el / ereader
Under the hood everything uses pdftools -- you can do highlights and other annotations but they live in the original pdf.
qpdf
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🔍Underrated Open Source Projects You Should Know About đź§
QPDF is a CLI tool that performs content-preserving transformations on PDF files. We have another tool for managing files!
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Insecure Features in PDFs
Given how well Preview.app and Safari work for viewing >99% of PDFs I actually encounter in the wild, this article makes Apple's engineering decisions look good.
It also confirms many suspicions I've had over the years that have led me to, e.g., running all PDFs from questionable sources through VirusTotal before viewing on platforms where I wouldn't normally run antivirus software.
The original article also confirms my suspicions that this step is inadequate:
Because the Launch action can be considered as a danger- ous feature, we conducted a large-scale evaluation of 294,586 PDF documents downloaded from the Internet, in order to research if there are any legitimate use cases at all. Of those documents, only 532 files (0.18%) contained a Launch action. While none of the files was classified as malicious according to the VirusTotal database, we conclude that the Launch action is rarely used in the wild and its support should be removed by PDF implementations as well as the standard.
Incidentally, the Launch action is still present in the most recent version of the PDF standard[1], with only OS-specific launch parameters deprecated (which include passing arguments to the launched executable, so eliminating the deprecated feature is still a significant security gain).
Finally, I'm both personally and professionally curious about how the non-DoS examples in this articles may apply to non-viewer PDF tools and libraries like qpdf[2] and Ghostscript's original and recently reimplemented PDF interpreters[3].
[1] https://pdfa.org/resource/iso-32000-pdf/
(registration required, but at least the base standard is available at no cost; sadly, important incorporated standards like ISO 21757-1:2020 [ECMAScript for PDF] are not)
[2] https://qpdf.sourceforge.io
[3] https://ghostscript.com/blog/pdfi.html
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Jim Keller criticizes Nvidia CUDA, x86 – 'CUDA's a swamp, not a moat, like x86'
I know you're talking about GUI editing, but I've found libqpdf[1] incredibly useful for making programmatic PDF edits with minimal (typically no) structural disturbance.
[1] https://qpdf.sourceforge.io
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How to remove all metadata & identifiers when uploading Elsevier articles to libgen?
Solved this. So the string which we were concerned about depends on the time, which is why it changes everytime a new document is generated with the same source PDF. it is a meaningless string really. from the documentation, it gives this explanatin. To be sure, i raised an issue with the guys at QPDF and they were quick to answer the question too. The explanation theyve given is even more clearer.
- I wanna design UI/Ux for open source!
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qpdf.el: A transient Emacs wrapper for qpdf
Hi, this is my first Emacs package! It provides a transient wrapper for the qpdf command-line tool aimed especially at users of pdf-tools or at least DocView. With it one can, for example, remove/reorder/split/rotate pages of a pdf file, merge pdf files, remove annotations, and apply a range of transformations to a pdf file. See the qpdf documentation.
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The New Ghostscript PDF Interpreter
There are some here, as test files in the qpdf library: https://github.com/qpdf/qpdf/tree/main/qpdf/qtest/qpdf
(I wrote a low-level PDF parser and ran it over the PDF files that happened to be present on my laptop—just regular ones—and ran into some files that (some) PDF viewers open but even qpdf doesn't. I say "even" because qpdf is really good IMO.)
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Ask HN: Why is the PDF format so inaccessible?
If you're comfortable handling the (typo)graphical aspects of the PDF yourself and have the ability to consume a C++ library, I've had good experiences using the Apache-licensed qpdf[1] library to handle the low-level structural aspects of the PDF standard. It's particularly convenient when your application requires structure-preserving integration of existing PDF content.
Simple example applications, each completed in 2–3 days, both in C#, using C++/CLI to integrate libqpdf:
1. Overlaying fixed-format text on pre-existing blank PDF form pages, ensuring the content of each distinct form page is embedded exactly once, and that all necessary assets (fonts, images, etc.) from the blank form PDF pages are included in the output PDF.
2. Losslessly combining a sequence of PDF, TIFF, and JPEG images into a single PDF with bookmarks pointing to the first page of each source file and existing image compression maintained where possible. In this application, only the source TIFFs were anything other than arbitrary (i.e., the TIFFs were more-or-less baseline images coming from a small number of scanning systems, but the JPEGs and PDFs came from all sorts of different applications).
[1] https://github.com/qpdf/qpdf
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unlocking pdfs WITH password
Use qpdf https://github.com/qpdf/qpdf
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Quick macOS terminal command to batch remove user password from PDF
I was looking for a way on macOS to batch remove the user password from a bunch of PDF files that had the same password. I found the easiest way was to use qpdf with the following command:
What are some alternatives?
pdf-continuous-scroll-mode.el - A pdf-tools extension that provides continuous scrolling functionality
pdfcpu - A PDF processor written in Go.
dwim-shell-command - Emacs shell commands with DWIM behaviour
pikepdf - A Python library for reading and writing PDF, powered by QPDF
homebrew-emacs-plus - Emacs Plus formulae for the Homebrew package manager
pdf-lib - Create and modify PDF documents in any JavaScript environment
homebrew-emacsmacport - Emacs mac port formulae for the Homebrew package manager
OpenPDF - OpenPDF is a free Java library for creating and editing PDF files, with a LGPL and MPL open source license. OpenPDF is based on a fork of iText. We welcome contributions from other developers. Please feel free to submit pull-requests and bugreports to this GitHub repository.
qpdf.el - A transient Emacs wrapper for qpdf
TCPDF - Official clone of PHP library to generate PDF documents and barcodes
pdf-tools - Emacs support library for PDF files.
puppeteer - Node.js API for Chrome