Apps with 'PDF annotation' feature

Open-source browser with Gecko engine, supporting HTML add-ons and providing privacy features like Enhanced Tracking Protection and third-party cookie blocking.

Advanced image manipulation tool offering comprehensive tools for photo retouching, composition, and batch processing in a free package.

A free, open-source viewer for Windows, supports PDFs, eBooks, Comics, with a simple, fast, and portable design prioritized for ease of use.

Open-source suite for editing documents, spreadsheets, presentations, forms, and PDF files with co-editing modes, plugin support, AI assistant, and integration across 40+ platforms.

Local-first, privacy-focused notebook supporting Markdown and Org mode, offline use, encrypted backup, extensible with plugins, and more.

Multi-platform document viewer supporting PDF, comics, EPUB, images, and Markdown with annotation tools, sidebar navigation, and text-to-speech features.

Zotero is a free, easy-to-use tool to help you collect, organize, share research and cite your research sources directly in your favourite word processor, with 300 MB free online storage.

Free, lightweight PDF viewer available on multiple platforms. Features include annotation, form-filling, signing, cloud integration, and more.

Cross-platform app for creating and organizing notes from text, web pages, images, and voice memos. Offers security features and integrates with various tools.

Widely-used word processor offering extensive document editing tools, SmartArt, PDF support, and integrated search features on multiple platforms.

Handwritten notes and PDF annotation app with pen input, shape drawing, customizable toolbar, image insertion, audio recording, and multi-platform support.

Office suite offering productivity tools for document creation, collaboration, and AI-enhanced editing across various platforms and devices.

Chromium-based browser for Windows, macOS, Linux, iOS, and Android, offering extension support, privacy features, smart security, and cloud sync across devices.

An efficient PDF viewer and editor with advanced features like direct content editing, OCR by ABBYY, form filling, annotation, and offline access.

Evince (or GNOME Document Viewer) is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS, SyncTex support with gedit, comics books (cbr,cbz,cb7 and cbt) and others. See Supported Document Formats for details.

Highly versatile PDF and XPS solution offering customizable rendering and viewing with features like digital signatures, redactions, and annotations.

Librera Reader is a highly customizable and feature-rich application for reading books in PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR formats on Android devices.

An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices.

Read, edit, convert, merge, and sign PDF files across devices, for completely free and without signing up.

PDF24 Creator is free and feature-filled PDF creation, merging and conversion tool for Windows. Its unique feature among the free PDF printer tools is an editor, which allows to easily assemble, create and modify PDF files with Drag & Drop.

locally hosted web application that allows you to perform various operations on PDF files.

Free and open source desktop application to split, merge, extract pages, rotate and mix PDF files.

Koodo Reader is an all-in-one e-book reader that can help you better manage and study your e-books. It's free and open-source.

Save, annotate, and organize web resources with highlighters, sticky notes, cross-device sync, Outliner, advanced search, and flexible sharing options.

A reading app that keeps you in the flow of your online reading & research. Save, annotate, share & collaborate without leaving your tab.