How to Edit a PDF Online (Add Text, Highlight, Draw)

Edit a PDF right in your browser: add text, highlight, draw, whiteout, insert images and sign. Step-by-step guide to the free online PDF editor.

Updated August 12, 20262 min read

Short answer: Open the PDF Editor, upload your file, and use the toolbar to add text, highlight, draw, whiteout, insert images or sign. When you're done, save and download — your edits are baked into the PDF.

The editor works like a lightweight design tool for documents: everything happens on the page in your browser, with nothing to install.

How to edit a PDF

  1. Open the PDF Editor and upload your document.
  2. Choose a tool from the toolbar — text, highlighter, pen, shapes, whiteout, image or signature.
  3. Work on the page — click to place text, drag to highlight or draw.
  4. Save and download the finished PDF.

What you can do in the editor

ToolUse it to
TextAdd notes, fill forms, label sections
HighlightMark key passages in color
Pen / drawFreehand annotations and marks
WhiteoutCover mistakes or old text
ImageInsert a logo, stamp or photo
SignatureDraw or type your signature

Editing text vs. converting to Word

The editor is built for annotating and adding content. To rewrite large blocks of the original text like a word processor, it's cleaner to convert the PDF to Word, edit there, and export back to PDF.

Tips

  • Undo freely — experiment with annotations; you can step back at any point.
  • Zoom in for precise placement of text and signatures.
  • Flatten by saving so your annotations can't be moved by the next reader.

Frequently asked questions

Can I edit the existing text in a PDF?+

You can add new text, cover text with a whiteout box, and annotate freely. Reflowing the original body text like a Word document is limited — for heavy rewriting, convert the PDF to Word, edit, then export back to PDF.

Can I fill in a PDF form?+

Yes. Use the text tool to type into form fields and the editor to check boxes, then download the completed form.

Will my edits be permanent in the file?+

Yes. When you save, annotations are baked into the downloaded PDF so they display the same in any viewer.

Related tools

Try it now