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PDF Toolbox — Merge, Split, Extract & Watermark

Five PDF tools in one: merge multiple files, split by page range, extract specific pages, add text watermarks, and view documents. All processing happens in your browser.

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How It Works

1

Upload PDFs

Drag and drop or select PDF files. For merging, add multiple files and reorder them as needed.

2

Choose Operation

Switch between Merge, Split, Extract, Watermark, and View tabs. Each tool has its own simple controls.

3

Download Result

Process your PDF and download the result instantly. All operations are performed locally in your browser.

Why Use Our PDF Toolbox?

100% Private

All PDF processing uses pdf-lib running in your browser. Files never leave your device. No server uploads, no data collection.

5 Tools in One

Merge, split, extract pages, add watermarks, and view PDFs. No need for multiple tools or desktop software.

No File Limits

Process PDFs of any size. No page limits, no file count restrictions, no watermarks on output. Truly free.

PDF Toolbox is a free, browser-based PDF utility suite by Aibrify that lets you merge, split, extract pages, and add watermarks to PDF files without uploading them to any server. Built for anyone who needs quick PDF manipulation without installing desktop software.

Five PDF Tools in Your Browser

Most online PDF tools require uploading your documents to remote servers, raising privacy concerns for sensitive materials. Our PDF Toolbox uses pdf-lib, a JavaScript library that runs entirely in your browser. Your files never leave your device.

Available Operations

  • Merge: Combine multiple PDF files into one. Upload files, reorder them, and merge with one click.
  • Split: Extract a range of pages from a PDF. Enter page numbers like "1-5, 8, 10-15" to create a new file with just those pages.
  • Extract: Similar to split, but focused on pulling out individual pages or specific selections.
  • Watermark: Add custom text watermarks to every page of a PDF. Control opacity and positioning.
  • View: Load and inspect PDF files to verify page counts and structure before processing.

Privacy-First PDF Processing

Unlike server-based alternatives (SmallPDF, iLovePDF, etc.), our tool processes everything locally. This makes it suitable for confidential documents, legal files, financial reports, and any sensitive material that should not be uploaded to third-party servers.

Frequently Asked Questions

How do I merge multiple PDFs?
Switch to the Merge tab, upload two or more PDF files, reorder them as needed using the arrow buttons, then click "Merge PDFs". The combined file downloads automatically.
How does page splitting work?
Upload a PDF, switch to the Split tab, and enter a page range (e.g., "1-3, 5, 7-10"). The tool extracts those pages into a new PDF file that downloads automatically.
Can I add watermarks to every page?
Yes. The Watermark tab lets you enter custom text and adjust opacity (5-80%). The watermark is applied in a 9-grid pattern across every page, rotated at -30 degrees for maximum coverage.
Are my PDFs safe?
Absolutely. All processing uses pdf-lib running entirely in your browser via WebAssembly. Your files never leave your device — there is no server upload. We cannot access your documents.
Is there a file size limit?
No hard limit. Processing speed depends on your device. Most PDFs under 100MB process in seconds. Very large files may take longer but will still work.
Is this tool free?
Yes, 100% free with no limits, no signup, no watermarks on output, and no data collection. The pdf-lib library is loaded on-demand to keep the page fast.

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Last updated: 2026-03-18 · Built & maintained by the Aibrify team — trusted by 10,000+ marketers

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