For OEMs & contract manufacturers
Protect your IP when sending drawings to contract manufacturers
Before you share engineering drawings with a CM, fabricator, or machining shop, redact the information that reveals your client, program, or proprietary process. PDFAmend finds every instance of a term across your entire drawing package and blacks it out in one click on supported native-text PDFs.
Upload your drawing PDF
Works on PDFs where text can be highlighted and copied · Free to edit
Quote packages to suppliers & print shops
When you request quotes from additive manufacturers, machine shops, or fabrication partners, you often need to share geometry and notes without revealing the end customer, program name, or internal part numbering. Search your quote PDF for those terms, use Smart redact or Find & Redact All, and review the export before sending.
Same workflow as RFP drawing packages — see contractor redaction guide.
How it works
Upload the drawing PDF
Works on landscape ARCH C/D/E and ANSI sheets. AutoCAD, Revit, SolidWorks, and Creo PDF exports with text layers.
Search for sensitive terms
Ctrl+F → type client name or part number. Every instance highlighted across all sheets simultaneously.
Redact All with one click
Removes native text and applies opaque black bars — not white rectangles. Review the export before sharing.
Repeat for each sensitive term
Search → Redact All for each field. Takes 30–60 seconds per term. Use Replace All to substitute generic codes if needed.
Download for $2.99
Your sanitized drawing package downloads. Original file untouched — it never left your device.
What to redact before sending to a CM
Industries using this workflow
Aerospace & Defense
Redact customer identity and program names from drawings sent to fabricators and sub-tier suppliers.
Automotive OEM
Hide vehicle platform, model year, and brand from tooling suppliers before RFQ distribution.
Medical Devices
Redact device identification and proprietary specifications from drawings sent to contract manufacturers.
Electronics / PCB
Remove customer identity and circuit function notes from schematics and Gerber reference PDFs.
Oil & Gas / Industrials
Redact operator identity and facility names from drawings sent to machining and fabrication shops.
Industrial Equipment
Remove OEM identification from assembly drawings distributed to component manufacturers.
Why “white-out” is not enough
Most PDF editors cover text with a white rectangle. In some PDF viewers, the underlying text can still be selected, copied, or extracted by OCR. This is a real IP risk when sending to multiple suppliers.
PDFAmend's Redact removes the native text object from the PDF content stream first, then draws a solid opaque black rectangle on top. Review the exported file before sharing with suppliers.
Need multiple engineers to do this?
PDFAmend team plans give your whole engineering team unlimited downloads. $19.99/month for 5 users — vs $119.95/month for Adobe Acrobat.
See team pricing →Related guides
Privacy · Pricing · Team plans