How coordinates work
Enter the redaction rectangle as percentages from the top-left corner of each page.
Redact PDF
Cover selected page areas with black redaction boxes and rebuild the PDF as flattened pages.
Free online toolNo install requiredTemporary filesMobile friendly
- Black redaction box
- Percentage-based area controls
- Flattened PDF output
Flattened output
The page is rebuilt with the black box burned into the output. Review carefully before sharing.
Important
For highly sensitive/legal redaction, manually inspect the output and keep the original secure.
How to use Redact PDF
Complete the task in a simple upload → adjust → download workflow.
Upload your file
Drag and drop your file into the upload area or click to choose it from your device.
Choose options
Adjust page ranges, quality, format, margins or order if the selected tool offers controls.
Download output
Run the tool and download the generated result using the temporary secure download link.
Common uses
Practical document workflows where this tool is useful.
Process documents online
Work without installing desktop software
Download a temporary output file
Continue with related PDF tools
Privacy-first processingUploaded and generated files use temporary storage and are cleaned automatically.
Works in the browser where possibleCore tools such as merge, split, rotate, image conversion and text export use browser mode for normal files.
Review before sharingAlways check important outputs, especially converted, compressed or extracted documents.
Redact PDF FAQ
Answers to common questions before processing files.
What does Redact PDF do?
Redact PDF helps you complete this PDF task online and download a processed file without installing software.
Are my files stored permanently?
No. PDFio uses temporary processing and temporary download links. Old uploaded and generated files are cleaned automatically according to the configured retention window.
Do I need to install software?
No. The public PDFio tools run in your browser or through the site processing engine, depending on the task.
Can I use this tool on mobile?
Yes. PDFio is designed for phones, tablets and desktop browsers. Large files work best on a stable connection.