Online PDF Tools
Merge, split, rotate, delete pages, protect, unlock, and watermark PDF files 100% inside your browser. Zero PDF uploads, zero server queues, and total privacy guaranteed.
Merge PDF
Combine multiple PDF documents into a single organized PDF file directly inside your browser.
Split PDF
Extract specific page ranges or split heavy PDF documents into separate files.
Rotate PDF Pages
Rotate orientation of individual or all PDF pages by 90°, 180°, or 270°.
Delete PDF Pages
Remove unwanted pages from PDF documents instantly in browser memory.
Protect PDF
Encrypt PDF files with strong user passwords to prevent unauthorized access.
Unlock PDF
Remove password security restrictions from protected PDF documents.
Add Page Numbers
Insert custom page numbers (Page X of Y) at header or footer positions.
Add PDF Watermark
Overlay custom text watermarks across PDF pages with opacity control.
Zero PDF Uploads. Total Confidentiality.
Wivon Tools processes every PDF document locally inside your browser memory using WebAssembly and pdf-lib. Your confidential contracts, legal files, and tax records never cross the internet.
How Client-Side PDF Tools Protect Document Privacy
PDF documents frequently contain highly confidential financial records, personal identification, and proprietary legal agreements. Traditional online PDF editors upload these files to unknown servers where they risk data exposure. Wivon Tools uses browser-sandboxed PDF engines to merge, split, rotate, and password-protect PDFs with zero network transfers.
Document Security
Files are manipulated directly in browser RAM via WebAssembly and destroyed from memory the moment your session ends.
Zero Watermarks
Export pristine, high-resolution PDF pages with zero branding, forced watermarks, or page restrictions.
Fast Local Performance
Reorganize, delete, and rotate pages in large multi-megabyte PDFs in milliseconds with zero upload lag.
Frequently Asked Questions about Wivon PDF Tools
Can I merge encrypted or password-protected PDFs?
You can use our Unlock PDF tool to decrypt the file in your browser before merging or splitting documents.
Is there any page limit for PDF operations?
No artificial page limits are enforced. As long as your device has sufficient RAM, you can process documents of any length.