Add Image Stamp to PDF in Power Automate
PDF4me Image Stamp action enables adding image watermarks and stamps to PDF documents in Power Automate with comprehensive positioning and styling control. This versatile branding feature supports logo watermarks, security images, and visual stamps with horizontal/vertical alignment, margin adjustments, opacity control (0-100%), and custom sizing, perfect for brand protection, document authentication, and visual security marking across Microsoft 365 workflows.
Authenticating Your API Request
To access the PDF4me Web API through Power Automate, every request must include proper authentication credentials. Authentication ensures secure communication and validates your identity as an authorized user, enabling seamless integration between your Power Automate flows and PDF4me's powerful image stamping services.

Key Features
- Logo Watermarking: Add company logos as watermarks to PDFs
- Flexible Positioning: Control horizontal and vertical alignment with margins
- Custom Sizing: Set image width and height in millimeters
- Opacity Control: Adjust transparency from fully transparent to fully opaque
- Page Selection: Apply stamps to specific pages or all pages
Parameters
Complete list of parameters for the Image Stamp action. Configure these parameters to control image stamping.
Important: Parameters marked with an asterisk (***) are required and must be provided for the action to function correctly.
| Parameter | Type | Description | Example |
|---|---|---|---|
| Align Horizontal*** | Option | Horizontal Position • Left - Left edge of page • Center - Equal distance from left and right edges • Right - Right edge of page • Controls left-right positioning | Center |
| Align Vertical*** | Option | Vertical Position • Top - Top edge of page • Middle - Equal distance from top and bottom edges • Bottom - Bottom edge of page • Controls up-down positioning | Middle |
| PDF File Content*** | Binary | Source PDF File • Map PDF file content from previous action • Supports PDFs from SharePoint, OneDrive, email • Can be dynamically retrieved from flows • Must be valid PDF document | [File Content from Get File] |
| File Name*** | String | PDF Document Name • Source file name with proper file extension • Used for processing identification • Must include .pdf extension • Supports dynamic naming | Report.pdf |
| Image File Content*** | Binary | Stamp Image Content • Map stamp image content from source action • Supports PNG, JPEG formats • Transparent PNG recommended for watermarks • Can be from SharePoint image library | [Image Content] |
| Image File Name*** | String | Image File Name • Image file name with proper extension • Should be .png or .jpeg/.jpg • Used for processing identification • Supports dynamic naming | logo.png |
| Margin Horizontal In mm | Number | Horizontal Offset • Horizontal margin in millimeters • Gap from left edge if aligned left • Gap from right edge if aligned right • Ignored if centered, default is 0 | 10 |
| Margin Vertical In mm | Number | Vertical Offset • Vertical margin in millimeters • Gap from top edge if aligned top • Gap from bottom edge if aligned bottom • Ignored if middle aligned, default is 0 | 10 |
| Opacity | Number | Transparency Level • Values between 0 to 100 • 0 for entirely transparent • 100 for full opacity • Controls watermark visibility | 50 |
| Pages*** | String | Page Selection • Pages where image needs to be added • Use numbers: 1,2,3 for specific pages• Use all for all pages• Use first or last for single pages | all |
| Height in mm | Number | Image Height • Image height in millimeters • If 0, default height or aspect ratio will be used • Controls vertical size • Default is 0 for automatic | 50 |
| Width in mm | Number | Image Width • Image width in millimeters • If 0, default width or aspect ratio will be used • Controls horizontal size • Default is 0 for automatic | 80 |
Output
The PDF4me Image Stamp action returns comprehensive output data for seamless Power Automate flow integration:
- Table
- JSON
- Flow Integration
Table View
Response data in a structured table format:
| Parameter | Type | Description |
|---|---|---|
| File Content | Binary | PDF document with image stamp/watermark applied |
| File Name | String | Name of the output PDF file with image stamp |
JSON Response Format
{
"File Content": "[Binary Content of PDF with Image Stamp]",
"File Name": "Report_Watermarked.pdf"
}
Power Automate Flow Usage
Use image-stamped PDF in subsequent actions:
- Email Distribution: Send branded documents with logo watermarks
- SharePoint Publishing: Upload watermarked documents to libraries
- Client Delivery: Provide branded documents to external parties
- Print Services: Send watermarked documents for printing
- Archive Storage: Store documents with branding applied
- Web Publishing: Upload branded PDFs to websites
Workflow Examples
The PDF4me Image Stamp action in Power Automate provides comprehensive workflow templates designed for real-world business scenarios:
- Document Branding
- Draft Watermark
- Security Marking
- Copyright Protection
Automated Document Logo Watermarking Workflow
Transform your brand presence with automated logo watermark application:
Complete Workflow Steps:
- Trigger: Client deliverable PDF generated
- Get Document: Retrieve PDF from SharePoint
- Get Company Logo: Fetch company logo PNG from assets library
- Add Logo Watermark: Apply logo at bottom right corner
- Set Transparency: Use 30% opacity for subtle branding
- Set Size: Apply 40mm x 20mm logo dimensions
- Email Client: Send branded document to client
- Archive Branded: Store watermarked version in deliverables library
Business Benefits:
- Brands 100+ client documents monthly automatically
- Ensures consistent branding on all external deliverables
- Protects intellectual property with visible branding
- Improves brand recognition by 45%
Automated Draft Watermark Application Workflow
Streamline document review with automated draft watermark:
Complete Workflow Steps:
- Trigger: Document created in drafts folder
- Get Draft: Retrieve PDF from drafts library
- Get Draft Image: Fetch "DRAFT" watermark image
- Apply Watermark: Add draft stamp diagonally across pages
- Set Transparency: Apply 40% opacity for visibility
- Apply to All: Stamp all pages in document
- Email Reviewers: Send draft-marked PDF for review
- Track Version: Log draft version with watermark
Business Benefits:
- Watermarks 150+ draft documents weekly
- Prevents confusion between drafts and final versions
- Provides clear visual draft indication
- Reduces accidental distribution of drafts by 90%
Automated Security Classification Watermarking
Optimize security with automated classification image stamping:
Complete Workflow Steps:
- Trigger: Sensitive document uploaded to secure folder
- Get Document: Retrieve PDF from secure location
- Get Classification Image: Fetch appropriate security badge image
- Apply Security Stamp: Add classification badge at top center
- Set Full Opacity: Use 100% opacity for clear visibility
- Add to All Pages: Apply stamp to every page
- Email Authorized Users: Send marked document to cleared personnel
- Audit Log: Record distribution of classified document
Business Benefits:
- Marks 200+ classified documents monthly
- Ensures visible security classification on all pages
- Prevents unauthorized distribution with clear marking
- Maintains compliance with security policies
Automated Copyright Image Watermarking
Enhance intellectual property protection with copyright watermarks:
Complete Workflow Steps:
- Trigger: Publication-ready document finalized
- Get Document: Retrieve final PDF for publication
- Get Copyright Image: Fetch copyright symbol watermark
- Apply Watermark: Add copyright image to bottom center
- Set Subtle Opacity: Use 60% transparency
- Add Company Name: Overlay company name with copyright
- Publish Document: Upload watermarked PDF to website
- Archive Protected: Store copyright-protected version
Business Benefits:
- Protects 75+ published documents monthly
- Deters unauthorized copying and distribution
- Maintains copyright notices on all pages
- Provides legal protection for published content
Industry Use Cases & Applications
- Corporate & Business
- Legal & Professional Services
- Marketing & Communications
- Healthcare & Medical
Corporate & Business Use Cases
- Company Branding: Add logo watermarks to all external documents
- Draft Marking: Apply draft watermarks to review documents
- Copyright Protection: Add copyright images to publications
- Department Stamps: Apply departmental logos to documents
Legal & Professional Services Use Cases
- Firm Branding: Add law firm logos to all client documents
- Confidentiality Images: Apply confidential stamps and badges
- Security Classification: Add classification level badges
- Document Authentication: Apply authenticity seals
Marketing & Communications Use Cases
- Brand Watermarking: Add brand logos to marketing materials
- Copyright Protection: Apply copyright images to content
- Proof Watermarks: Add "PROOF" watermarks to drafts
- Security Marking: Apply security badges to restricted content
Healthcare & Medical Use Cases
- Facility Branding: Add hospital logos to medical documents
- HIPAA Badges: Apply HIPAA compliance stamps
- Confidentiality Images: Add patient confidentiality badges
- Department Logos: Apply medical department logos