How to Use the PDF Editor

1. Drop or browse a PDF to load page thumbnails.
2. Hover any page to rotate or delete it. Drag to reorder.
3. Open the Watermark panel and choose Text or Image/Logo.
4. Open Page Numbers to add automatic page numbering.
5. Open Password Protection to encrypt the PDF with a password and set permissions.
6. Click Generate PDF to export all pages, or check specific pages and click Export Selected to split.

What is the All-in-One PDF Editor?

A complete browser-based PDF editing suite: reorder, rotate, delete pages, add text or image/logo watermarks, insert automatic page numbers, split out selected pages, and password-protect the output with granular permissions. Built on @cantoo/pdf-lib for editing and encryption, and PDF.js for thumbnail previews. Nothing is ever uploaded.

Common Use Cases

• Brand documents with your logo — upload a PNG/JPG and place it as a watermark on every page.
• Split a PDF — select specific pages and export them as a new file.
• Send confidential files securely — encrypt with a password before sharing.
• Restrict copying or printing — set permissions so recipients can view but not extract.
• Prepare reports — reorder sections, add page numbers, and watermark "DRAFT".
• Clean up scans — delete blank pages and rotate sideways scans.

Why Choose Our PDF Editor

• Visual Editing: Real page thumbnails — see exactly what you're editing.
• Text & Image Watermarks: Diagonal text or positioned logos with opacity control.
• Split Mode: Check pages and export only the ones you need.
• Password Encryption: Standard PDF encryption with user/owner passwords and permission flags.
• 100% Private: Everything runs locally. Passwords, logos, and files never leave your device.
• No Watermarks · No Sign-up · No Size Limits.

Frequently Asked Questions

How do I add a logo as a watermark?

Open the Watermark panel, switch to the Image / Logo tab, and upload a PNG or JPG. Adjust opacity, size, and position. The logo will be drawn on every exported page.

How does Split Mode work?

Each page thumbnail has a checkbox in the top-right corner. Check the pages you want to extract, then click Export Selected. A new PDF is generated containing only those pages, with all your other edits (rotation, watermark, page numbers, password) still applied.

What's the difference between user and owner passwords?

The user password is required to open the PDF. The owner password is what controls permission changes — if set, recipients with only the user password can't change the permissions you've assigned. If you leave owner password blank, we reuse the user password.

Are passwords actually secure?

The PDF is encrypted using standard PDF RC4 encryption supported by all major readers (Adobe Acrobat, Preview, Foxit, browsers). Use a strong password — short passwords can be brute-forced.

Can I restrict printing or copying?

Yes. In the Password Protection panel, uncheck any of Allow printing, Allow copying text, Allow modifying, or Allow annotating. Note: permission flags depend on the PDF reader honoring them — most reputable readers do.

Are my files or passwords uploaded?

No. All editing, watermarking, and encryption happens in your browser. Your PDF, logo image, and passwords never leave your device.

What if my PDF is already password-protected?

Encrypted PDFs cannot be edited in-browser. Unlock the file first in a desktop PDF reader, then load it here.