About Redact PDF
Redact PDF cover sensitive regions with black boxes. Everything runs locally in your browser — no cloud upload.
The PDF Tools Suite uses Web Workers and open libraries such as pdf-lib and Mozilla PDF.js so your documents stay on your device.
How to use Redact PDF
- 1. Upload PDF Add the document to edit in the browser.
- 2. Place on canvas Use the workbench to place redaction boxes.
- 3. Export Click Process and download the updated PDF.
Frequently asked questions
Do my files leave my device when I use Redact PDF?
- No. Processing runs in your browser inside a Web Worker. Files are not uploaded to our servers.
What is the file size limit?
- Each file can be up to 50 MB in the browser workspace. Larger files may fail depending on available memory.
How do I get started with Redact PDF?
- Cover sensitive regions with black boxes Open the tool, add your file, then click Process.