Edit PDF

Edit PDF files directly in your browser. Add text, highlight content, draw shapes and annotate PDFs online for free without signup.

Add text, highlights, shapes, signatures, and images to any PDF directly in your browser - no software, no signup. Perfect for marking up contracts, annotating reports, or filling plain-text forms. Your document never leaves your device.

Upload your PDF to get started — no sign-up required.

How to Edit a PDF Online

  1. Open your PDF in the editor - drag it onto the page or click Choose PDF File.
  2. Select a tool from the sidebar: Text, Highlight, Draw, Rectangle, Circle, Arrow, Signature, or Image.
  3. Click or drag on the page to place your annotation. Use the properties bar to adjust color, size, font, and opacity.
  4. Click Download in the top toolbar - all annotations are flattened and saved into a new PDF.

Why Use PDFCrush?

  • Add text, highlights, shapes, signatures, sticky notes, and images without any software
  • Full undo history - press Ctrl+Z to step back through every action
  • Works on any PDF type: digital, scanned, or image-based
  • Runs entirely in your browser - your document never leaves your device

Your Privacy & Security

The editor runs 100% in your browser using pdfjs-dist and pdf-lib. No data is transmitted to or stored on any server.

Frequently Asked Questions

Can I rewrite existing embedded PDF paragraphs directly with this browser tool?

No. Rather than rewriting core compiled text streams, this browser tool functions as an annotation layer. It lets you add new text layers, draw shapes, mask items, and layer markup elements onto your document canvas cleanly.

Is there a cap on how many annotations or shape structures I can draw?

No. You can add text boxes, highlight arrays, and use vector drawing elements freely. The local client script handles tracking coordinates on the fly without causing slow download lag.

Will custom text additions render correctly in standard external PDF readers?

Yes. All added markup layers are saved back down into standardized, universally compatible PDF annotation schemas, ensuring they render correctly when viewed in external software like Adobe Acrobat or Apple Preview.

Are my contract markups private and secure from tracking logs?

Yes. The workspace operates inside a sandboxed client side app layer. No document data or text entries are tracked or stored on an external server, keeping your contract edits private.

How do I undo a specific edit or drawing on the canvas?

The toolbar features standard undo and redo keys, allowing you to quickly cycle back and forth through your local annotation editing history.

Can I hide or mask sensitive text by drawing a white rectangle over it?

Yes. You can use the drawing tool to place opaque shapes over content. Note that this adds a visual layer; for true security erasure, use our **Redact PDF** tool instead.

Does editing a document modify the original file on my local machine?

No. Your original file remains untouched. The browser interface downloads an entirely fresh copy of the document containing your edits.

Can I navigate through a multi page document and edit separate sheets sequentially?

Yes. The workspace includes sidebar page navigation, allowing you to apply edits across different pages while keeping your work synced for the final download.