Free Client-Side PDF Tools - 100% Private
Merge, split, extract, rotate, reorder, watermark, and convert PDF files directly in your browser without uploading to any server. Every single file operation runs directly inside your local web browser without uploading bytes to our infrastructure or external cloud servers. Enjoy maximum privacy, zero bandwidth lag, and infinite free usage.
All PDF Tools (9)
Merge PDF
Combine multiple PDF files into a single unified document with custom page order.
Split PDF
Split a PDF into individual pages or extract custom page ranges into separate files.
Extract PDF Pages
Select and extract specific pages from a PDF to generate a new custom PDF document.
Delete PDF Pages
Remove unwanted, blank, or duplicate pages from your PDF and save a clean copy.
Rotate PDF
Rotate individual pages or all pages of a PDF document by 90, 180, or 270 degrees.
Reorder PDF Pages
Organize and rearrange PDF pages into any custom sequence with drag-and-drop ease.
Watermark PDF
Add custom text watermark stamps with opacity, rotation, and custom fonts to your PDF.
Images to PDF
Convert and combine multiple JPG, PNG, and WebP images into a clean PDF document.
PDF to Images
Convert each page of a PDF document into high-resolution PNG or JPG images.
How 100% In-Browser PDF Tools Work
When you select files in our pdf tools, your browser allocates secure sandbox memory using standard HTML5 APIs. Dedicated WebAssembly routines and background Web Worker threads parse and transform your media entirely on your computer's CPU/GPU.
File streams are read directly from disk into typed array buffers in RAM without dispatching HTTP POST requests.
Algorithms execute in isolated Web Workers to prevent main UI freezing and protect sensitive data.
Processed outputs generate temporary blob URLs for instant saving, automatically reclaimed after download.
Frequently Asked Questions: PDF Tools
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Image Tools
Resize, crop, compress, convert, rotate, and batch process images instantly with high performance Canvas and Web Worker technologies.
- High-speed Canvas API and OffscreenCanvas hardware acceleration
- Smart lossy and lossless image compression
OCR Tools
Extract text from scanned documents, photos, screenshots, and PDFs using client-side AI & Tesseract OCR running in Web Workers.
- Tesseract.js OCR engine running in dedicated Web Workers
- Multi-language support including English, Vietnamese, Spanish, French, and more
Text Tools
Count words, convert cases, remove duplicate lines, clean text, generate clean URL slugs, preview Markdown, and format JSON.
- Zero latency real-time string manipulation
- Detailed readability and speaking/reading time analytics