pydyf is a low-level PDF generator written in Python and based on PDF specification 1.7.

PoDoFo is a C++ library and set of command-line tools to work with the PDF file format. It can parse PDF files and load them into memory, and makes it easy to modify them and write the changes to disk. It is primarily useful for applications that wish to do lower level manipulation of PDF, such as extracting content or merging files.

Poppler is a PDF rendering library based on the xpdf-3.0 code base. Poppler gives access to the following binary programs:

• pdfattach

• pdfdetach

• pdffonts

• pdfimages

• pdfinfo

• pdfseparate

• pdfsig

• pdftocairo

• pdftohtml

• pdftoppm

• pdftops

• pdftotext

• pdfunite

img2pdf converts images to PDF via direct JPEG inclusion. That conversion is lossless: the image embedded in the PDF has the exact same color information for every pixel as the input.

Xournal++ is a hand note taking software written in C++ with the target of flexibility, functionality and speed. Stroke recognizer and other parts are based on Xournal code.

Xournal++ features:

• Support for Pen pressure, e.g., Wacom Tablet

• Support for annotating PDFs

• Fill shape functionality

• PDF Export (with and without paper style)

• PNG Export (with and without transparent background)

• Map different tools / colors etc. to stylus buttons / mouse buttons

• Sidebar with Page Previews with advanced page sorting, PDF Bookmarks and Layers (can be individually hidden, editing layer can be selected)

• enhanced support for image insertion

• Eraser with multiple configurations

• LaTeX support

• bug reporting, autosave, and auto backup tools

• Customizable toolbar, with multiple configurations, e.g., to optimize toolbar for portrait / landscape

• Page Template definitions

• Shape drawing (line, arrow, circle, rectangle)

• Shape resizing and rotation

• Rotation snapping every 45 degrees

• Rect snapping to grid

• Audio recording and playback alongside with handwritten notes

• Multi Language Support, Like English, German, Italian...

• Plugins using LUA Scripting

The zathura-pdf-mupdf plugin adds PDF support to zathura by using the mupdf rendering library.

Zathura is a customizable document viewer. It provides a minimalistic interface and an interface that mainly focuses on keyboard interaction.

PyPDF2 is a pure Python PDF library capable of:

1. extracting document information (title, author, …)

2. splitting documents page by page

3. merging documents page by page

4. cropping pages

5. merging multiple pages into a single page

6. encrypting and decrypting PDF files

By being pure Python, it should run on any Python platform without any dependencies on external libraries. It can also work entirely on StringIO objects rather than file streams, allowing for PDF manipulation in memory. It is therefore a useful tool for websites that manage or manipulate PDFs.

pdfpc is a presentation viewer application which uses multi-monitor output to provide meta information to the speaker during the presentation. It is able to show a normal presentation window on one screen, while showing a more sophisticated overview on the other one providing information like a picture of the next slide, as well as the left over time till the end of the presentation. The input files processed by pdfpc are PDF documents.

MuPDF is a C library that implements a PDF and XPS parsing and rendering engine. It is used primarily to render pages into bitmaps, but also provides support for other operations such as searching and listing the table of contents and hyperlinks.

The library ships with a rudimentary X11 viewer, and a set of command line tools for batch rendering pdfdraw, rewriting files pdfclean, and examining the file structure pdfshow.

The zathura-ps plugin adds PS support to zathura using libspectre.

The zathura-pdf-poppler plugin adds PDF support to zathura by using the poppler rendering engine.

Pdfgrep searches in pdf files for strings matching a regular expression. Support some GNU grep options as file name output, page number output, optional case insensitivity, count occurrences, color highlights and search in multiple files.

qpdfview is a document viewer for PDF, PS and DJVU files. It uses the Qt toolkit and features persistent per-file settings, configurable toolbars and shortcuts, continuous and multi‐page layouts, SyncTeX support, and rudimentary support for annotations and forms.

pdfposter can be used to create a large poster by building it from multiple pages and/or printing it on large media. It expects as input a PDF file, normally printing on a single page. The output is again a PDF file, maybe containing multiple pages together building the poster. The input page will be scaled to obtain the desired size.

This is much like poster does for Postscript files, but working with PDF. Since sometimes poster does not like your files converted from PDF. Indeed pdfposter was inspired by poster.

pdf2svg is a simple command-line PDF to SVG converter using the Poppler and Cairo libraries.

WeasyPrint helps web developers to create PDF documents. It turns simple HTML pages into gorgeous statistical reports, invoices, tickets, etc.

From a technical point of view, WeasyPrint is a visual rendering engine for HTML and CSS that can export to PDF and PNG. It aims to support web standards for printing.

It is based on various libraries but not on a full rendering engine like WebKit or Gecko. The CSS layout engine is written in Python, designed for pagination, and meant to be easy to hack on. Weasyprint can also be used as a python library.

Keywords: html2pdf, htmltopdf

Impressive is a tool to display PDF files that provides visual effects such as smooth alpha-blended slide transitions. It provides additional tools such as zooming, highlighting an area of the screen, and a tool to navigate the PDF pages.

PoDoFo is a C++ library and set of command-line tools to work with the PDF file format. It can parse PDF files and load them into memory, and makes it easy to modify them and write the changes to disk. It is primarily useful for applications that wish to do lower level manipulation of PDF, such as extracting content or merging files.

libHaru is a library for generating PDF files. libHaru does not support reading and editing of existing PDF files.

This package provides a tool for doing everyday things with PDF documents. It can:

• Merge PDF documents or collate PDF page scans

• Split PDF pages into a new document

• Rotate PDF documents or pages

• Decrypt input as necessary (password required)

• Encrypt output as desired

• Fill PDF forms with X/FDF data and/or flatten forms

• Generate FDF data stencils from PDF forms

• Apply a background watermark or a foreground stamp

• Report PDF metrics, bookmarks and metadata

• Add/Update PDF bookmarks or metadata

• Attach files to PDF pages or the PDF document

• Unpack PDF attachments

• Burst a PDF document into single pages

• Uncompress and re-compress page streams

• Repair corrupted PDF (where possible)

This is the ReportLab PDF Toolkit. It allows rapid creation of rich PDF documents, and also creation of charts in a variety of bitmap and vector formats.

unpaper is a post-processing tool for scanned sheets of paper, especially for book pages that have been scanned from previously created photocopies.

Its main purpose is to make scanned book pages better readable on screen after conversion to PDF. Additionally, unpaper might be useful to enhance the quality of scanned pages before performing OCR.

flyer-composer can be used to prepare one- or two-sided flyers for printing on one sheet of paper.

Imagine you have designed a flyer in A6 format and want to print it using your A4 printer. Of course, you want to print four flyers on each sheet. This is where Flyer Composer steps in, creating a PDF which holds your flyer four times. If you have a second page, Flyer Composer can arrange it the same way - even if the second page is in a separate PDF file.

This package contains both the command line tool and the gui too.