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How to annotate PDFs online

Follow these easy steps to add comments to a file online:

  1. Click the Select a file button above, or drag and drop a file into the drop zone.

  2. Select the PDF document you want to annotate.

  3. After Acrobat uploads the file, sign in to add your comments.

  4. Use the toolbar to add sticky notes, text, and freehand drawings.

  5. Download your annotated file or get a link to share it.

What types of tools can I use to edit PDFs for free?

What types of tools can I use to edit PDFs for free?


Acrobat online services let you add comments, text and drawings to PDFs for free when you sign in. Use our free PDF editor to add sticky notes or text anywhere in the file. You can also highlight, strike through, or underline content. Use the drawing tool to freehand draw whatever you want, including lines, shapes and arrows in your desired colour.

For advanced PDF editing tools, try Adobe Acrobat Pro DC for free for seven days on the Windows or Mac operating system. Edit text by fixing a typo or swapping PDF text. You can also move, rotate, flip and add images, as well as add page numbers or watermarks. In addition, your free trial lets you edit scans with optical character recognition (OCR), create PDFs from almost any file format, create PDF forms, sign PDFs, organise PDF pages, reduce file size, secure PDFs with passwords and convert PDFs to Microsoft Excel, PowerPoint and Word documents.

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