Remove metadata, annotations, JavaScript, and hidden content from PDFs
WhiskFile PDF Sanitizer is a free online tool to remove metadata, annotations, JavaScript, and hidden content from PDFs. Files are processed entirely in your browser — nothing is uploaded to any server.
Quick Answer
Remove metadata, annotations, JavaScript, and hidden content from PDFs. WhiskFile's PDF Sanitizer is free, works in your browser, and requires no account. Your files never leave your device — all processing happens locally.
Upload your PDF
Select or drag and drop your PDF file into the sanitizer.
Choose what to remove
Toggle options: metadata, annotations, form data, JavaScript, attachments, XMP metadata, and thumbnails.
Sanitize
Click Sanitize PDF. Processing happens entirely in your browser — your file never leaves your device.
Review security report
Review the before/after security report showing what was found and removed.
Download sanitized PDF
Download the clean, sanitized PDF ready for safe sharing.
Max file size: 50 MB (free) · 500 MB (paid). Processing time: ~3s on average. Upload one file at a time.
PDF Sanitizer runs entirely in your browser — no software to install. Works on any device with a modern browser.
Windows & Mac
Chrome, Firefox, Edge, Safari
iPhone & Android
Safari, Chrome mobile
iPad & Tablets
Full touch support
Unlike server-based tools that upload your documents, WhiskFile processes everything locally in your browser. Your files never leave your device — not even temporarily.
No upload required
Files are processed in your browser — nothing is sent to any server
100% private
No server storage, no data collection, no third-party access
Works offline
Once loaded, works without an internet connection
“Password-protecting sensitive documents before sharing gives me peace of mind. Simple and reliable.”
Robert Liu
Compliance Officer
“Redacting confidential info from legal documents is critical. WhiskFile makes it foolproof.”
Nina Patel
Attorney
Help us improve by sharing your experience with PDF Sanitizer.
Client-side processing
This tool now runs entirely in your browser — files never leave your device.
Result preview & sharing
Preview your processed file before downloading, and share results via a secure link.
The sanitizer removes document title, author name, subject, keywords, creator application, producer, creation date, and modification date from the PDF's info dictionary.
Yes, the removed data is permanently deleted from the output PDF. The original file on your device is not modified.
No. WhiskFile sanitizes PDFs entirely in your browser using pdf-lib. Your file never leaves your device — nothing is uploaded.
Yes. You can toggle each category independently: metadata, annotations, form data, JavaScript, attachments, XMP metadata, and thumbnails.
The sanitizer removes JavaScript, embedded files, XMP metadata, and page thumbnails. For hidden text under images, use the PDF Redaction tool instead.
Yes. PDF Sanitizer on WhiskFile is completely free with no account required. Free users get 7 tasks per day with files up to 50 MB. There are no watermarks on any plan. Pro plans ($4.99/month) unlock unlimited tasks, 500 MB files, batch processing, and API access.
Yes. PDF Sanitizer runs entirely in your browser using WebAssembly. Your files are never uploaded to any server — they stay on your device throughout the entire process. No data is transmitted, stored, or accessible to WhiskFile or any third party.
Yes. PDF Sanitizer works on any device with a modern browser — iPhone, Android, iPad, tablets, Chromebooks, and desktop computers. No app download required. The interface adapts to your screen size automatically.
PDF Sanitizer accepts PDF files as input and produces PDF output. The maximum file size is 50 MB on the free plan (500 MB for Pro users). There are no page count limits.
See how WhiskFile compares to other PDF tools on features, pricing, and privacy.
See how professionals in different industries use this tool.
Chromebook & Linux
Any modern browser
