PDF Redaction for Engineers
The submittal is due to the client by 5 PM and the 150 MB drawing set will not upload. If you work as one of the engineers, you have been there. Confileo's PDF Redaction tool permanently removes sensitive text and information from a PDF — free, in your browser, with your files deleted automatically the moment you are done.
Start Using PDF Redaction NowWhy Engineers use PDF Redaction
Day to day, engineers handle technical drawings, CAD exports, specifications, inspection reports, datasheets and project submittals — exactly the kind of files this tool is built for.
- Combining drawings, specs and calculations into one numbered submittal package.
- Compressing large CAD-export PDFs so they pass the project portal limit.
- Flattening markups and stamps so the approved revision cannot be changed.
- Converting between PDF and editable formats without corrupting drawing scale.
How to pdf redaction in 3 steps
- Upload the PDF with sensitive content.
- Mark the text or areas to redact.
- Download a PDF with that information permanently gone.
Built for the way engineers work
- ✓Handles large, drawing-heavy files without choking or downsampling detail.
- ✓Flattening locks the approved revision so site copies stay authoritative.
- ✓No install on locked-down corporate machines — runs in the browser.
PDF Redaction — Frequently asked questions
Is PDF Redaction free for engineers?
Yes. Handles large, drawing-heavy files without choking or downsampling detail. There is no signup, no trial and no watermark on your files.
What kind of files can engineers use PDF Redaction for?
PDF Redaction works with the documents engineers handle every day — technical drawings, CAD exports, specifications, inspection reports, datasheets and project submittals. A common case: Combining drawings, specs and calculations into one numbered submittal package.
Is the redacted text truly removed?
Yes. Redaction removes the underlying content — not just a black box you can copy behind.
Can redacted information be recovered?
No. Once redacted and downloaded, the removed content cannot be retrieved from the file.
How do I permanently delete sensitive info from a PDF?
Mark the sensitive text or area, apply redaction, and download a file with that information fully removed — not just hidden.
What is the difference between redaction and a black box?
A black box can be removed or copied behind. Redaction here deletes the underlying data so no trace remains.
Can I use it to hide ID numbers or bank accounts?
Yes. Ideal for removing ID numbers, bank accounts and names before sharing contracts and official documents.
Does the rest of the document stay intact?
Yes. Only what you marked is removed; the rest of the content and formatting stays unchanged.