PDFtk is a simple tool for doing everyday things with PDF documents. It comes in three flavors: PDFtk Free, PDFtk Pro, and our original command-line tool PDFtk Server.


PDF4QT is described as 'Open-source PDF viewer/editor using Qt framework with C++ library, multithreading, hardware rendering, encryption, text layout, and form tools' and is a PDF Reader in the office & productivity category. There are more than 100 alternatives to PDF4QT for a variety of platforms, including Windows, Linux, Mac, Web-based and Android apps. The best PDF4QT alternative is SumatraPDF, which is both free and Open Source. Other great apps like PDF4QT are Okular, Foxit PDF Reader, PDF Arranger and Evince.
PDFtk is a simple tool for doing everyday things with PDF documents. It comes in three flavors: PDFtk Free, PDFtk Pro, and our original command-line tool PDFtk Server.


Ashampoo PDF Free is a software for opening, reading, and creating PDF files. It includes a built-in printer driver for generating PDFs from any Windows application, a compact and fast PDF reader, and the ability to fill out interactive and static forms.


PDF Candy is an online PDF toolset of 47 services for successful processing of PDF files. The service is free for single-file operations and does not require an account. A desktop application is also offered,



PDFChef enhances document management with cross-platform support on PC, Mac, iOS, and browsers. It offers text-editing, page rearranging, conversion tools, and cloud-based sharing. Supporting various file formats, it also enables users to add signatures directly to PDFs for swift document finalization.




Upload documents once, auto-fill your PDF forms in one click. PDF form filling powered by your docs. Built for teams handling hundreds of visa, tax, and onboarding forms each month. Save 5+ hours per week and eliminate costly human errors from manual data entry.




Read, edit, annotate, and sign PDF documents with built-in AI features like summarize and translate, OCR in 50+ languages, fill forms, export to major formats offline, apply watermarks, compress files, secure with passwords, and use text-to-speech on all major platforms.




Edit, fill, annotate, and sign PDFs online, merge documents, request signatures, upload from cloud storage, save locally, share for collaboration, and track workflow with auditing, supporting various file types and mobile access for document management.




Xpdf is a free PDF viewer and toolkit, including a text extractor, image converter, HTML converter, and more. Most of the tools are available as open source.


An ebook reader and library management app supporting ".epub" files. Arianna discovers your books automatically, and sorts them by categories, genres and authors.




Professional PDF tools without the cloud. 100% offline, native performance, and zero data collection. Your documents stay where they belong: on your device.




Ashampoo PDF Pro 3 is a software solution for managing and editing PDF documents. It offers tools for creating, converting, editing, merging, and securing PDFs. The software allows users to create optimally sized documents for any device and offers encryption to protect...



