Open-source PDF viewer/editor using Qt framework with C++ library, multithreading, hardware rendering, encryption, text layout, and form tools.


Open-source PDF viewer/editor using Qt framework with C++ library, multithreading, hardware rendering, encryption, text layout, and form tools.


Papers helps you collect and curate the research material that you're passionate about. This award-winning reference manager will improve the way you find, organize, read, cite, and share.




With GoodReader on your iPhone, iPod Touch or iPad, you can read virtually anything, anywhere. Books, movies, maps, pictures; GoodReader puts it all in a single app, right in your pocket.



Welcome to OpenSign, an open-source document e-signing solution designed to provide a secure, reliable, and free alternative to commercial platforms like DocuSign, PandaDoc, SignNow, Adobe Sign, Smartwaiver, SignRequest, HelloSign & Zoho sign.




Glasp is a social PDF & Web highlighter that allows you to collect, organize, and share insightful ideas from the web. With your highlights and notes, you can build a personalized AI clone, creating a dynamic, collective knowledge-sharing experience.

Collect your thoughts, think, write, brainstorm, and create the perfectly looking notes with this powerful, all-purpose, productivity tool.




LiquidText offers a fast, natural way to review, gather, and organize information across all your docs: then apply the results to writing reports or simply studying. Pull out key facts and connect them together




Expand to new markets by instantly translating your documents, apps, and webpages. Create multilingual chatbots to communicate with your customers on their terms.

Comprehensive software for note-taking, PDF markup, and digital planning with 25 brushes, real-time collaboration, advanced ink engine, and over 150 templates.




Soda PDF was created with the user in mind. Smart, reliable, and accessible, our software is designed with a focus on giving you the most useful features in an easy-to-use package.




Notato turns any lecture, meeting or article into crisp, structured notes. Record or import audio, video or web links and instantly get transcripts, summaries, flashcards, quizzes and chat-Q&A.



The only internet-enabled AI assistant that understands every website. Ask questions, write, & summarize anything. Uses ChatGPT.




Take handwritten notes naturally on your Android tablet, phone, or Chromebook supporting Android apps! With Squid you can write just like you would on paper using an active pen, passive stylus, or your finger.








Experience note-taking reimagined. More than just an app, Notewise serves as your digital brainstorming companion, allowing seamless collaboration. Capture thoughts and sketches effortlessly on your device, organize notes with ease, and enjoy access from anywhere through our...




Your AI-driven notetaking companion for smarter learning. Capture real-time lecture notes and convert audio, text, files, and YouTube videos into formatted notes, mindmaps, flashcards, and more.




Verbum is a word processor with all the features a professional word processor should have. It was modeled to closely resemble Microsoft Word, to reduce the learning curve. With Verbum you can load, save and convert to and from today’s most popular text-based document formats...

UPDF is a PDF editor offering a variety of features such as editing, annotating, converting, protecting, and organizing PDFs. It allows users to modify text and images, apply annotations like highlighter, underline, sticky notes, and links.




Orion is a pdf, djvu, xps and cbz file viewer for Android devices, based on mupdf and DjVuLibre libraries.



With PDFill you can create, fill, delete and submit PDF form fields; insert new formatted text, check, image, hyperlink, whiteout, highlight, drawing, comment and annotation anywhere in the document; save, print or email the filled and password-protected PDF; save and resume...



Noteey is All-in-one Visual Note-taking App that transforms how you organize and connect your ideas. Offline, secure, and fast.



Bluebeam Revu delivers award-winning PDF creation, editing, markup and collaboration technology to Windows desktop and tablet users. Create and navigate smart, information-rich document sets from converted Microsoft Office and CAD files.


The Universal Data Tool is a User Interface for editing and annotating Images (Computer Vision, Bounding Boxes, Segmentation), Text (Named Entity Recognition, Classification) or general purpose data entry. to view and edit any data defined in the extensible the .udt.



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.


Besides exceptionally fast launching and displaying speed, Gaaiho Reader is reliable in printing, filling forms annotating documents and adding bookmarks.



