Add Text Stamp to PDF in Power Automate
PDF4me Add Text Stamp to PDF action enables adding customizable text watermarks and stamps to PDF documents in Power Automate with comprehensive formatting control. This versatile feature supports security labels, confidentiality notices, draft markers, and branding with full control over text content, positioning (horizontal/vertical alignment), font styling (size, bold, italic, underline), margins, and transparency levels, perfect for document security and brand protection 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 text stamping services.

Key Features
- Custom Text Content: Add any text as watermark or stamp on PDFs
- Flexible Positioning: Control horizontal and vertical alignment with margin adjustments
- Font Styling: Customize font size, bold, italic, and underline attributes
- Opacity Control: Set transparency levels from fully opaque to fully transparent
- Page Selection: Apply stamps to specific pages or all pages
Parameters
Complete list of parameters for the Add Text Stamp to PDF action. Configure these parameters to control text stamping.
Important: Parameters marked with an asterisk (***) are required and must be provided for the action to function correctly.
| Parameter | Type | Description | Example |
|---|---|---|---|
| File Name*** | String | PDF Document Name • Source file name with proper file extension • Used for processing and output identification • Must include .pdf extension • Supports dynamic naming from flow variables | Document.pdf |
| File Content*** | Binary | Source PDF File Content • 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] |
| Pages*** | String | Page Selection • Pages where watermark/stamp should be applied • Use numbers: 1,2,3 for specific pages• Use all for all pages• Use first or last for single pages | all |
| Text*** | String | Stamp Text Content • Text to be stamped on PDF • Can include security labels, notices, branding • Supports dynamic content from flow variables • Any alphanumeric characters and symbols | CONFIDENTIAL |
| Vertical Alignment*** | Option | Vertical Position • Top - Top edge of page • Middle - Equal distance from top and bottom • Bottom - Bottom edge of page • Controls up-down positioning | Middle |
| Horizontal Alignment*** | Option | Horizontal Position • Left - Left edge of page • Center - Equal distance from left and right • Right - Right edge of page • Controls left-right positioning | Center |
| Horizontal Margin in mm*** | Number | Horizontal Offset • Horizontal margin from edge in millimeters • Distance from left if aligned left • Distance from right if aligned right • Ignored if centered | 10 |
| Vertical Margin in mm*** | Number | Vertical Offset • Vertical margin from edge in millimeters • Distance from top if aligned top • Distance from bottom if aligned bottom • Ignored if middle aligned | 10 |
| Font Size*** | Number | Text Size • Font size of text in watermark • Larger values for visibility • Standard range 10-72 points • Must provide value | 48 |
| Set Bold*** | Boolean | Bold Styling • True - Apply bold font weight • False - Use regular font weight • Enhances text visibility • Required parameter | true |
| Set Italics*** | Boolean | Italic Styling • True - Apply italic font style • False - Use regular font style • Adds stylistic variation • Required parameter | false |
| Set Underline*** | Boolean | Underline Styling • True - Underline the watermark text • False - No underline • Additional emphasis option • Required parameter | false |
| Opacity*** | Number | Transparency Level • Values between 0 to 100 • 0 for fully transparent • 100 for fully opaque • Control visibility and subtlety | 50 |
Output
The PDF4me Add Text Stamp to PDF 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 text stamp/watermark applied |
| File Name | String | Name of the output PDF file with stamp |
JSON Response Format
{
"File Content": "[Binary Content of PDF with Text Stamp]",
"File Name": "Document_Stamped.pdf"
}
Power Automate Flow Usage
Use stamped PDF in subsequent actions:
- Security Distribution: Send documents with security labels
- SharePoint Publishing: Upload branded documents to libraries
- Client Delivery: Provide watermarked documents externally
- Email Distribution: Send confidentiality-marked PDFs
- Archive Storage: Store documents with status indicators
- Print Services: Send watermarked documents for printing
Workflow Examples
The PDF4me Add Text Stamp to PDF action in Power Automate provides comprehensive workflow templates designed for real-world business scenarios:
- Confidential Marking
- Draft Watermark
- Document Branding
- Status Marking
Automated Confidential Document Marking Workflow
Transform your document security with automated confidentiality stamping:
Complete Workflow Steps:
- Trigger: Sensitive document uploaded to secure SharePoint folder
- Get Document: Retrieve PDF from confidential folder
- Add Stamp: Insert "CONFIDENTIAL" text stamp at top center
- Set Styling: Apply 48pt bold red font with 70% opacity
- Set Margins: Position 15mm from top edge
- Add Footer Stamp: Add "Internal Use Only" at bottom
- Email Stakeholders: Send marked document to authorized users
- Archive Marked: Store stamped document in secure library
Business Benefits:
- Marks 200+ confidential documents monthly automatically
- Prevents unauthorized distribution with visible security labels
- Ensures compliance with data protection policies
- Reduces manual stamping time by 95%
Automated Draft Watermarking Workflow
Streamline your document review with automated draft marking:
Complete Workflow Steps:
- Trigger: Document created in draft folder for review
- Get Draft: Retrieve PDF from drafts library
- Add Watermark: Insert "DRAFT" diagonal text across pages
- Set Transparency: Apply 30% opacity for subtle appearance
- Apply to All: Stamp all pages in document
- Set Style: Use 72pt italic font for visibility
- Email Reviewers: Send draft-marked document for review
- Track Version: Log draft version in document management system
Business Benefits:
- Watermarks 150+ draft documents weekly automatically
- Prevents confusion between drafts and final versions
- Enables clear visual distinction for reviewers
- Reduces accidental distribution of draft documents by 90%
Automated Document Branding Workflow
Optimize your brand presence with automated document stamping:
Complete Workflow Steps:
- Trigger: Report generation completes for external distribution
- Get Report: Retrieve generated report PDF
- Add Company Name: Insert company name stamp at top
- Add Copyright: Insert "© 2024 Company Name" at bottom
- Set Branding Style: Apply brand colors and fonts
- Set Opacity: Use 80% opacity for professional look
- Email Clients: Send branded report to client distribution list
- Archive Branded: Store branded version in marketing library
Business Benefits:
- Brands 100+ client reports monthly automatically
- Ensures consistent company branding on all external documents
- Protects intellectual property with copyright notices
- Improves brand recognition by 40%
Automated Document Status Marking Workflow
Enhance your document management with automated status stamps:
Complete Workflow Steps:
- Trigger: Document approval status changes in workflow
- Get Document: Retrieve PDF from approval system
- Check Status: Evaluate approval decision
- Add Approved Stamp: If approved, add "APPROVED" green stamp
- Add Rejected Stamp: If rejected, add "REJECTED" red stamp
- Set Positioning: Place stamp at top right corner
- Email Requestor: Send status-marked document to submitter
- Archive Final: Store stamped document in final folder
Business Benefits:
- Marks 250+ approval documents monthly automatically
- Provides instant visual indication of document status
- Eliminates manual stamp application saving 20 hours monthly
- Maintains clear audit trail with status indicators
Industry Use Cases & Applications
- Legal & Professional Services
- Finance & Banking
- Healthcare & Medical
- Corporate & Business
Legal & Professional Services Use Cases
- Confidential Labels: Mark legal documents with confidentiality stamps
- Draft Indicators: Watermark draft contracts and briefs
- Privilege Stamps: Add attorney-client privilege notices
- Status Markers: Stamp documents with approval or review status
Finance & Banking Use Cases
- Security Labels: Mark financial documents with security classifications
- Compliance Stamps: Add regulatory compliance notices
- Draft Watermarks: Indicate draft status on financial reports
- Copyright Notices: Protect proprietary financial analysis
Healthcare & Medical Use Cases
- HIPAA Notices: Stamp documents with HIPAA compliance labels
- Confidentiality Marks: Add patient confidentiality notices
- Draft Indicators: Mark draft medical protocols
- Classification Labels: Add sensitivity classification stamps
Corporate & Business Use Cases
- Branding Stamps: Add company name and copyright notices
- Confidentiality Labels: Mark internal documents as confidential
- Draft Watermarks: Indicate document draft status
- Distribution Marks: Add distribution restriction notices