Home / Tools / Edit PDF

Edit PDF online

Open any PDF and add text, images, shapes or drawings — directly in your browser, with no signup.

Edit PDF online

Open any PDF and add text, images, shapes or drawings — directly in your browser, with no signup.

Why use PDFWix to edit PDFs

• Add text on top of any page: Type directly onto the PDF — perfect for filling forms, adding labels, or correcting a typo on a finished document.
• Drop in images: Insert logos, signature graphics, or diagrams. Resize and reposition with drag handles.
• Shapes and arrows: Rectangles, circles, lines, and arrows for marking up reviews, redlining drafts, or pointing at issues.
• Highlights and freehand: Highlight passages in five colours and scribble freehand notes — feels like marking up paper.
• Privacy first: Your file never leaves your device — Edit PDF processes everything locally in your browser using WebAssembly and pdf-lib.
• Free, no signup, no watermark: Most online PDF editors hide downloads behind a trial. PDFWix doesn't — edit and download as many times as you want.

Common uses for editing PDFs

• Filling a non-fillable PDF form (government, tax, or insurance) by typing on top of the fields
• Marking up a contract draft with comments, highlights, and rectangles around problem clauses
• Adding a logo or letterhead to a generic PDF template
• Annotating a research paper or textbook chapter for a study group
• Drawing arrows on a screenshot PDF for a bug report or design review
• Adding date and 'For [Bank Name] use only' text to a PDF copy of an ID

How to edit a PDF

1. Upload your PDF — Click "Select PDF file" or drag the document into the upload box. The file stays in your browser — never uploaded to our server.
2. Add text, images, shapes or highlights — Pick a tool from the toolbar — text, image, rectangle, ellipse, line, arrow, highlight or freehand pen — and click on the page to add it.
3. Position and style each annotation — Drag annotations to reposition; use corner handles to resize. Tweak colour, font, line weight and opacity from the side panel. Hold Shift while dragging to constrain alignment.
4. Download the edited PDF — PDFWix flattens your edits into the downloaded PDF so they appear identically in every reader. Keep a copy of the original if you might want to re-edit.

Related tools

• Fill PDF Form
• Sign PDF
• Add Page Numbers
• Add Watermark
• Edit Pdf on Windows
• Edit Pdf on Mac
• Edit Pdf on iPhone
• Edit Pdf on Android
• Edit Pdf on Chromebook
• Edit Pdf on iPad
• How to edit a PDF without Adobe

Frequently asked questions

Can I edit existing text in the PDF?

PDFWix lets you cover text and type new text on top, which works for short fixes. For full paragraph editing, convert to Word first, edit there, then re-export to PDF.

Will the original file be modified?

No. PDFWix always produces a new PDF. Your source file stays untouched on your device.

Are edits saved into the PDF or just the viewer?

Edits are flattened into the downloaded PDF, so they appear identically in every reader, on print, and after re-saves.

Can I undo edits later?

Edits flatten on download. Keep a copy of the original if you might want to re-edit. Within a single session you can undo with Ctrl/Cmd+Z.

Are my files safe when I use Edit PDF?

Yes. Edit PDF runs entirely in your browser using pdf-lib — your file is never uploaded or sent to any server at any point. Nothing to delete because nothing was ever received.

Is there a page limit?

No. The editor handles single-page forms or 500-page reports — performance scales with your device's RAM.

How do I edit and annotate PDFs in the browser?

Read our guide on editing and annotating PDFs in the browser.