Apps Related to PDF annotation

Discover apps and services related to PDF annotation.

Annotate PDF documents directly within the Evernote application, adding shapes, highlights, text, and comments to your files.

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BibSonomy

BibSonomy

Free

BibSonomy is a powerful social bookmarking and publication-sharing platform, designed for researchers and knowledge workers. It allows users to collect, organize, and share literature, documents, and web resources using collaborative tagging and bibliography management features.

Excellent BibTeX import and export capabilities.
Collaborative
Office & Productivity
Documents

Documents

Free

Documents by Readdle is a powerful file manager, media player, and document viewer for iPhone and iPad. It allows users to organize files, download content, view various document types, listen to music, watch videos, and annotate PDFs all within a single application.

Comprehensive all-in-one file management solution.
Built-in Download Manager
Audio & Music Development File Management News & Books Office & Productivity Photos & Graphics Video & Movies
colwiz

colwiz

Freemium

colwiz is a comprehensive research management software designed for academics and researchers. It provides tools for organizing research papers, generating bibliographies, collaborating with peers, and managing research projects.

Free to use across all platforms.
Bibliography generator
Education & Reference
CloudScan

CloudScan

Freemium

CloudScan is a user-friendly scanning software designed for efficiently digitizing documents, photos, and images into multipage PDF files. It offers core functionalities like scanning, PDF management (split, merge, edit), and built-in OCR capabilities, making it a comprehensive solution for basic document handling on a single computer.

Intuitive and simple user interface, easy to learn and use.
Scan to PDF
Xodo

Xodo

Free

Xodo is a comprehensive, cross-platform PDF solution offering a wide array of tools for viewing, annotating, editing, signing, and creating PDF documents. With robust collaboration features and seamless cloud integration, it caters to both individual and professional use.

Comprehensive suite of PDF tools in a single application.
Collaborative
Office & Productivity
PDFescape

PDFescape

Freemium

PDFescape is a versatile online PDF editor and form filler.

Web-based, no installation required.
Edit PDF
Office & Productivity
ThinkFree Office

ThinkFree Office

Freemium

ThinkFree Office is a comprehensive office suite written in Java, providing a robust and cross-platform solution for document creation, editing, and collaboration on Windows, Linux, macOS, and Android.

Excellent cross-platform compatibility (Windows, macOS, Linux, Android).
Convert PDF to Word document
Office & Productivity
Benubird PDF

Benubird PDF was a document organizer designed to help users manage their PDF collections efficiently. It offered features like tagging, metadata management, and integration with office suites to streamline document workflow and search.

Robust tagging system for flexible organization
Tagging
Office & Productivity
Stylus Labs Write

Stylus Labs Write is a unique word processor designed specifically for handwritten input on tablets and other stylus-enabled devices. It offers a fluid writing experience with tools tailored for digital ink, including robust erasing, flexible formatting, and organizational features.

Excellent handwritten ink fidelity and fluidity.
Functioning Erasor Tools
Office & Productivity
ReadCube

ReadCube

Freemium

ReadCube is a powerful desktop and web-based reference management and PDF annotation tool designed for researchers and students.

Robust PDF reader with enhanced features.
Built-in File Manager
Education & Reference Office & Productivity
Master PDF Editor

Master PDF Editor is a comprehensive PDF editing suite for Windows, macOS, and Linux. It empowers users to create, edit, view, annotate, and sign PDF documents with a robust set of tools.

Comprehensive set of PDF editing and manipulation tools.
Multiple languages
Office & Productivity
PDF-XChange Editor

PDF-XChange Editor is a powerful, free PDF editor and viewer for Windows. It offers a wide range of tools for creating, editing, annotating, and managing PDF documents, including OCR, form creation, and advanced security features. Despite its extensive capabilities, it remains lightweight and efficient.

Feature-rich free version with significant editing capabilities.
Convert images to PDF
Office & Productivity
Aldiko

Aldiko

Freemium

Aldiko is a versatile e-book reader for Android and iOS, supporting a wide range of formats including EPUB and PDF. It offers a rich reading experience with customizable settings, library management, annotation tools, and synchronization options.

Supports a wide range of e-book formats, including EPUB, PDF, and audiobooks.
Offline Reading
News & Books
Preview

Preview

Free

Preview is the native image and PDF viewer for macOS. It offers essential tools for viewing, annotating, and basic editing of these file types directly within the Apple ecosystem. Designed for efficiency and low resource use, Preview provides a seamless and integrated experience for handling common document and image formats on Mac computers.

Native and free part of macOS.
Built-in Image converter
Office & Productivity Photos & Graphics
Diigo

Diigo

Freemium

Diigo is a comprehensive online tool designed for researchers, students, and lifelong learners to collect, organize, annotate, and share information found on the web. It acts as a powerful bookmarking service combined with robust annotation capabilities for web pages, PDFs, and documents.

Comprehensive annotation tools for web pages and PDFs.
Browser sync
Social & Communications Web Browsers
Mendeley

Mendeley

Freemium

Mendeley is a freemium reference manager and academic social network designed for researchers. It helps organize, manage, and share research papers, generate citations, and collaborate on projects.

Excellent integration with Microsoft Word and LibreOffice for citations.
Collaborative
Education & Reference Office & Productivity Social & Communications
Qiqqa

Qiqqa

Freemium

Qiqqa is a robust, award-winning research management software designed for academic and commercial researchers. It offers comprehensive tools for managing, annotating, and analyzing PDF documents, facilitating collaboration, bibliography generation, and knowledge discovery within research projects.

Comprehensive PDF management and annotation features.
Collaborative
Backup & Sync Education & Reference File Management Office & Productivity Social & Communications
PDF-XChange Viewer

PDF-XChange Viewer is a versatile and lightweight PDF reader and editor. It offers a wide array of features for viewing, annotating, and manipulating PDF documents, including OCR capabilities and form filling, all within a user-friendly interface.

Extensive free features for viewing, annotating, and form filling.
Multiple languages
Office & Productivity
Adobe Acrobat Reader DC

Adobe Acrobat Reader DC is the venerable and widely adopted standard for interacting with PDF documents. It provides robust tools for viewing, printing, signing, and commenting on PDF files across various devices and platforms.

Industry-standard for PDF viewing and compatibility.
Sync between devices
Office & Productivity
Evernote

Evernote

Freemium

Evernote is a popular cross-platform note-taking application designed to capture, organize, and manage your notes. It offers robust syncing capabilities across devices and includes features like web clipping, OCR for images, and integration with other services to streamline your productivity and information management.

Seamless syncing across multiple platforms.
Google Drive integration
Office & Productivity
Citavi

Citavi

Freemium

Citavi is a comprehensive reference management and knowledge organization software designed for students, academics, and researchers. It facilitates the entire research process, from information gathering and organization to task management and bibliography generation, enhancing productivity and streamlining academic work.

Integrated reference, knowledge, and task management.
Information gathering
News & Books Office & Productivity OS & Utilities