PDF Proof Stamp
Add professional proof and revision stamps to any PDF file online for free. Choose from PROOF, REVISED, APPROVED, CLIENT REVIEW, FOR APPROVAL, FINAL, NOT FOR PRINT, or enter custom text. Add an optional subtitle with a revision number, date, and reviewer name. Control stamp style, color, opacity, rotation, and position - output is a press-ready PDF ready for client delivery or print bureau submission.
Proof Stamp
Live Preview
Center · All pages
Why Use Our PDF Proof Stamp Tool?
7 Professional Proof Stamp Presets
Choose from PROOF, REVISED, APPROVED, CLIENT REVIEW, FOR APPROVAL, FINAL, and NOT FOR PRINT - the exact stamps used in professional print review workflows. Each preset has a semantically matching color. Custom text is also supported.
Subtitle, Style, and Full Visual Control
Add a subtitle line with revision number, date, and reviewer name directly below the stamp. Choose from text-only, boxed (rectangle border), or oval (rounded border) stamp styles, with full control over color, opacity, rotation, font size, and position.
Secure - Files Never Leave Your Device
Our pdf proof stamp tool runs entirely in your browser using pdf-lib. Your PDF artwork, client files, and confidential print proofs are never uploaded to any server and never leave your device - safe for any pre-press workflow.
No Software Required - Works Everywhere
Add proof stamps to PDF files directly in your browser with no InDesign, no Acrobat, no plugins, and no account needed. Works on Windows, Mac, iOS, and Android. Free to use with no file size limits and no watermarks.
Common Use Cases for PDF Proof Stamp Tool
Print Bureau Proof Routing
Print bureaus and prepress departments stamp every PDF proof with PROOF + revision number before sending to clients for approval, creating a clear document trail for each version of the artwork.
Agency Client Approval Rounds
Design agencies use our pdf proof stamp tool to mark PDF files with CLIENT REVIEW or FOR APPROVAL before emailing to clients, and stamp with APPROVED once sign-off is received - keeping version history unambiguous.
Publishing & Editorial Production
Publishers stamp page proof PDFs with REVISED or PROOF 2 and add a date and proofreader name in the subtitle field, giving editors and typesetters instant clarity on which revision they are reviewing.
Freelance Designer Deliverables
Freelance graphic designers add PROOF stamps to artwork PDFs before sending to clients for review, preventing clients from mistakenly using unfinished artwork and clearly marking the file's review status.
Document Version Control
Operations and project management teams stamp specification documents and technical drawings with DRAFT, REVISED, or FINAL to communicate the current document status to all stakeholders without relying on filename conventions.
Contractor & Vendor Submissions
Contractors and vendors stamp submitted PDFs with FOR APPROVAL or NOT FOR PRINT to communicate that a document is for client review only - not to be used for construction, production, or distribution without formal written approval.
Understanding PDF Proof Stamps in Print Workflows
What is a PDF Proof Stamp?
A PDF proof stamp is a text overlay applied to a PDF file to communicate its review or approval status in a print or document production workflow. Standard proof stamps - PROOF, REVISED, APPROVED, FOR APPROVAL, CLIENT REVIEW, FINAL, and NOT FOR PRINT - are used by print bureaus, design agencies, publishers, and contractors to ensure every stakeholder immediately understands whether a PDF is approved for production, still under review, or a draft version. Our pdf proof stamp tool adds stamps as native PDF text elements using pdf-lib - vector-sharp at any zoom, not a raster overlay.
How Our PDF Proof Stamp Tool Works
- 1Upload your PDF: Drop or select the PDF file you want to stamp. The file is loaded in your browser using pdf-lib - no server upload required. The tool reads the page dimensions to position stamps correctly.
- 2Configure your stamp: Select a proof stamp preset or enter custom text. Add an optional subtitle line (revision number, date, reviewer name). Choose stamp style (text-only, boxed, oval), color, opacity, rotation, font size, position, and page scope. The live preview updates as you type.
- 3Download the stamped PDF: Click Apply Proof Stamp to process the file and download the stamped PDF instantly - named with a
-proof-stampsuffix. Original content is fully preserved; the stamp is added as a new layer on top.
Proof Stamp Options Explained
- Subtitle Line: An optional second line of text rendered at ~35% of the main stamp font size - ideal for revision numbers, ISO date format (e.g. 18 Jun 2026), and reviewer or approver name. Positioned just below or above the main stamp text based on stamp position.
- Stamp Style: Text Only renders just the stamp text; Boxed draws a rectangle border around the text (the most common proof stamp style in commercial print); Oval draws a rounded border - typically used for formal APPROVED stamps in engineering and legal workflows.
- Opacity & Rotation: Opacity controls transparency (10-100%); lower opacity lets underlying content show through. Rotation tilts the stamp from −90° to +90° - a −30° to −45° tilt is the industry-standard proof stamp orientation for most print workflows.
- Page Scope: Apply to all pages, first page only (for single-page cover sheets), last page only, odd-numbered pages, or even-numbered pages - useful for double-sided document proofing workflows.
Privacy, Security & Limitations
All pdf proof stamp processing runs entirely in your browser - your files are never uploaded to any server and never leave your device. The stamp is added as a new text layer on top of existing content - original artwork, text, images, fonts, links, and form fields are fully preserved. Encrypted or password-protected PDFs cannot be processed and will return an error - decrypt them first. The stamp is embedded as a native PDF text element using Helvetica Bold from the standard PDF font set, so no external fonts are required and the output is compatible with all PDF viewers and print RIPs.
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Frequently Asked Questions About PDF Proof Stamp Tool
A PDF proof stamp is a text overlay - such as PROOF, REVISED, APPROVED, or CLIENT REVIEW - applied to a PDF to communicate its status in a print or document review workflow. Our pdf proof stamp tool uses pdf-lib to embed the stamp as a native vector text element, so it remains sharp at any zoom level.
The tool includes 7 professional presets: PROOF, REVISED, APPROVED, CLIENT REVIEW, FOR APPROVAL, FINAL, and NOT FOR PRINT - each with a default color matching its intended use (blue for PROOF, red for REVISED and NOT FOR PRINT, green for APPROVED, purple for CLIENT REVIEW, orange for FOR APPROVAL, and black for FINAL). You can also enter any custom stamp text.
Yes. Use the Subtitle field to add any secondary information - revision number, ISO date, reviewer or approver name, or any other label. The subtitle renders as a smaller line just below (or above, depending on position) the main stamp text.
No. All processing happens entirely in your browser using pdf-lib. Your PDF never leaves your device and is never transmitted to any external server - completely safe for client files, confidential artwork, and commercial print proofs.
No. The stamp is added as a new text layer on top of the existing page content - original text, images, fonts, links, and form fields are completely preserved. The stamp does not overwrite or delete any existing content.
Three styles are available: Text Only (just the stamp text with no border), Boxed (a rectangle border drawn around the stamp text - the standard commercial print proof style), and Oval (a rounded border - common for formal APPROVED stamps in engineering and legal workflows).
Yes. The Apply To selector lets you stamp all pages, the first page only, the last page only, odd-numbered pages, or even-numbered pages - giving you precise control for double-sided and multi-section document proofing.
Yes, 100% free. No account, no signup, no file size limits, no subscription, and no watermarks added to your output by us. The pdf proof stamp tool is free to use with unlimited files.
Yes. The output PDF is a standard, professional-quality file with a native vector text stamp. It is fully compatible with Adobe Acrobat, PDF viewers, email clients, and all professional print workflows. The stamp is suitable for client-facing proof PDFs, agency deliverables, and submission documents.