Annotate PDF online
Annotate, Comment and Tag your PDF file for Efficient Collaboration Online for Free
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About Annotation app
PDF is a file format that preserves the original layout and formatting across different devices and platforms. It is widely used for sharing documents, publishing e-books, and presenting reports due to its consistency and ability to preserve the document's integrity. PDF files can contain text, images, hyperlinks, and interactive elements, and they support encryption and digital signatures for enhanced security.
Annotations allow users to collaborate, review documents, and add information according to context. They enable reviewers to offer feedback, editors to propose changes, and collaborators to communicate without modifying the original text.
GroupDocs.Annotation is a fast and efficient API to annotate documents of over 35 different types. Powered by a high-performance cloud-based GroupDocs server, it allows annotating the PDF files in the browser.
This free online application based on the GroupDocs.Annotation API annotates the PDF files on your device. Even if your file is encrypted, you can enter a password and view the file. We value your privacy, so the file and the password you specified are visible to you only. The application works on any device, including smartphones.
Video tutorialHow to annotate PDF documents online
Questions and Answers
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How can I annotate PDF document?First, you need to upload a file: drag & drop your PDF file or click inside the white area to choose a file. Then you will be redirected to the annotation application.
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How fast can I start annotating PDF document?The annotation app works fast. Typically it takes a couple of seconds to open a PDF document and prepare it for adding annotations.
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Is it safe to annotate PDF files using this Annotator?Of course! The preview files will be available instantly after the file uploaded. We will delete the uploaded file after 24 hours.
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Can I annotate documents PDF on Linux, Mac OS, or Android?Yes, you can use our annotator on any operating system that has a web browser. Our PDF Annotation App works online and does not require any software installation.
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What browser should I use to annotate PDF documents?You can use any modern browser to annotate PDF documents, for example, Google Chrome, Microsoft Edge, Firefox, Opera, or Safari.