Edit PDF

What is Edit PDF?

Edit PDF is a free online tool that lets you add text, annotations, and highlights directly onto your PDF pages without installing any software. Need to fill in a missing field on a form, leave a note for a colleague, or highlight an important clause in a contract? This tool handles it all inside your browser. It is built on the pdf-lib JavaScript library, which means your document never leaves your device. There is no server upload, no cloud storage, and no risk of your sensitive information being intercepted or stored by a third party.

When to Use Edit PDF

Use this tool whenever you need to make quick edits or additions to a PDF without opening a full desktop editor. Typical situations include:

• Adding your name, date, or other details to a fillable form that lacks interactive fields.
• Highlighting key passages in a legal agreement or research paper for quick reference.
• Annotating architectural plans or design mockups with feedback notes.
• Inserting corrective text on a document before printing or sharing it.
• Marking up a draft report with revision comments for your team.

How It Works

Drop your PDF into the upload area or select it from your file system. The tool renders each page so you can see the content exactly as it will appear. Use the editing toolbar to add text boxes, draw highlights, or place annotations anywhere on any page. When you are satisfied with your changes, click save and a new PDF with your edits baked in is generated for download. The entire process runs in JavaScript inside your browser, so it works offline once the page is loaded. No sign-up is needed, no watermarks are added, and the service is completely free.