Do I need to install any software or browser extensions?

No installation is required. Everything runs seamlessly in modern web browsers including Chrome, Safari, Firefox, Edge, and mobile browsers on iOS and Android.

Are there any file size or daily conversion limits?

No. Because the processing is handled entirely by your own device rather than expensive server clusters, there are no artificial daily limits, queues, or paywalls.

FastPebble

⚡ 100% Private In-Browser Tools

100% Free & Private • Zero Server Uploads

100% Private PDF Redactor

Blackout sensitive info permanently. Your PDF is flattened into an image so hidden text can never be copy-pasted or recovered by hackers.

Redaction Tools

1. Upload a PDF.
2. Click and drag on the document to draw black boxes over sensitive text.
3. Download the flattened, secure PDF.

Military-Grade Security: The final PDF is flattened into a single image per page. It is physically impossible to extract the text hidden beneath the black boxes.

Upload a PDF to Redact

100% processed securely and privately

High Performance Web Tool

Private PDF Redactor

Blackout Text Securely Offline

100% Client-Side Privacy

All processing runs directly in your local browser memory via WebAssembly and JavaScript. Your files are never uploaded to any remote server or third-party cloud.

Zero Latency & Lightning Fast

Eliminate upload and download wait times. Files are processed instantly using your device's native CPU & GPU acceleration.

No Limits, No Watermarks, 100% Free

Enjoy unlimited batch operations, maximum resolution outputs, and zero watermarks without ever needing to register or pay.

Quick Tutorial

How to use this tool in 3 simple steps

Upload or drag and drop your file into the secure workspace.

Adjust your preferred settings or let our automated presets optimize the output.

Click convert/process and download your finished file instantly to your device.

Most online PDF redactors just draw a black box over the text, which means anyone can copy-paste the hidden text from underneath! Our 100% Private PDF Redactor converts your PDF into flattened images before applying the redaction, making it physically impossible for hackers or scripts to extract the hidden sensitive information like SSNs, bank details, or passwords.

Why FastPebble Beats Traditional Cloud Converters

Compare local in-browser processing vs conventional cloud platforms like iLovePDF, Smallpdf & CloudConvert.

Feature	FastPebble Tools	Traditional Cloud Websites
Data Privacy & Security	100% Private (No server uploads)	Uploaded to remote 3rd-party servers
Processing Speed	Instant (0ms network latency)	Slow (Upload + Queue + Download wait)
File Size Limits	Virtually unlimited (Uses device RAM)	Strict limits (Paywalls for 10MB+)
Cost & Watermarks	100% Free Forever, No Watermarks	Subscription paywalls & daily limits

Frequently Asked Questions

Common Questions & Answers

Yes, 100%. Unlike conventional online tool websites that upload your files to remote cloud servers, FastPebble executes all file parsing, compression, and conversions locally on your computer or phone. Your confidential documents never leave your device.