How to Edit a PDF

Learn how to edit PDF text, images, and pages online for free without Adobe Acrobat. Step-by-step guide with screenshots.

About How To Edit PDF

Editing a PDF lets you add text, annotations, highlights, and signatures without converting the file to another format. PDF AI Tools provides a full in-browser PDF editor — no installation, no Adobe subscription, and no file uploads.

Our editor supports freehand drawing, sticky notes, text boxes, shape annotations, and digital signatures all in one tool. Unlike form-only editors, you can annotate any part of any PDF regardless of whether it has interactive fields.

How to Use How to Edit a PDF

  1. Step 1: Upload your PDF to the Edit PDF tool
  2. Step 2: Select an annotation tool from the toolbar
  3. Step 3: Click on the page to place the annotation
  4. Step 4: Download the annotated PDF when done

Key Features

How We Compare

Compared to desktop alternatives like Adobe Acrobat Pro (starting at $19.99/month), Smallpdf ($12/month for unlimited), or iLovePDF ($9/month Premium), PDF AI Tools delivers comparable quality at $0 for the core feature set. We skip the subscription friction by processing most operations directly in your browser with WebAssembly — no server infrastructure costs to pass on to users. Our AI features (summarization, chat, OCR) use a pay-as-you-go backend that keeps your total cost well under $5/month even for power users.

Frequently Asked Questions

Can I edit the original text inside a PDF?

You can add new text boxes on top of existing content. True inline text editing requires converting to Word first.

Are annotations preserved when I download?

Yes — all annotations are permanently embedded in the downloaded PDF.

Can others see my annotations?

Yes — annotations are visible to anyone who opens the PDF.

Is the editor compatible with Adobe Acrobat Reader?

Yes — annotations created in PDF AI Tools are standard PDF annotations readable by all major viewers.

Who Uses This Tool