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Add Text Watermark to PDF in Make

Add Text Watermark is a Make module by PDF4me that stamps any text string onto PDF pages inside a Make scenario. Use it when you need to mark documents as CONFIDENTIAL, DRAFT, SAMPLE, or with any custom label on a schedule or trigger. The module takes a PDF buffer, applies your text with full font, rotation, and opacity control, and returns a watermarked PDF ready to upload or distribute.

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Authenticating Your API Request

To access the PDF4me Web API through Make, every request must include proper authentication credentials. Authentication ensures secure communication and validates your identity as an authorized user, enabling seamless integration between your Make scenarios and PDF4me's text watermark services.

Important Facts You Should Not Miss

Opacity 0.1 to 0.4 keeps text readable under the watermark
The Opacity field runs from 0 (invisible) to 1 (fully opaque). Values between 0.1 and 0.4 produce semi-transparent watermarks that are visible without obscuring the underlying document content. Use 0.8 or higher for solid foreground stamps.
Leave Pages empty to watermark all pages at once
The Pages field accepts comma-separated 0-based indices (e.g. 0,1,2) or ranges (e.g. 0-4). Leave it empty to apply the watermark to every page in the document automatically, which is the most common use case for bulk marking workflows.
Set Background places stamp behind content, not over it
When Set Background is Yes, the watermark renders behind the PDF content layer, so text and images remain fully legible in front. Set it to No to place the watermark as a foreground overlay, which is more prominent and harder to remove.
Add Text Watermark module in Make, showing Stamp Text, Font Family, Opacity, Rotate, and alignment fields configured for a diagonal CONFIDENTIAL watermark

Set Stamp Text to your label (CONFIDENTIAL, DRAFT), configure Opacity to 0.3 for semi-transparent marking, and set Rotate to 45 for the classic diagonal watermark appearance.

How Do I Add a Text Watermark to a PDF in Make?

The PDF4me Add Text Watermark module connects to any Make trigger that delivers a PDF file. Wire it after a Google Drive, Dropbox, OneDrive, or SharePoint download trigger, configure your stamp settings, and the module applies the watermark on every run. According to the Make integration guide, PDF4me modules process files as binary data buffers, so the watermarked PDF returns on the Document Data output ready to upload directly. All 17 watermark parameters are configurable per scenario, allowing different stamp styles for different document types in the same Make account.

Parameters

Important: Parameters marked Required must be provided. Conditional parameters have a built-in default when omitted.

ParameterRequiredWhat it doesExample
ConnectionRequiredPDF4me connection holding your API key. Create one from the Make Connections panel.My PDF4me connection
PDF File NameRequiredSource PDF filename with .pdf extension. Maps to the output filename for the watermarked PDF.report.pdf
PDF FileRequiredBinary PDF content as a Make buffer. Map from Google Drive, Dropbox, OneDrive, or HTTP download module.1. Data
Stamp TextRequiredText string to apply as the watermark. Supports dynamic values from prior modules for variable stamps.CONFIDENTIAL
PagesConditionalTarget pages as 0-based comma-separated indices or ranges. Leave empty to watermark all pages automatically.0- (all pages)
Font FamilyRequiredFont name for the watermark text. Use web-safe fonts such as Arial, Helvetica, or Times New Roman for reliable rendering.Arial
SizeRequiredFont size in points. Typical watermarks use 48 to 80pt. Larger values are more prominent on the page.60
Set BoldRequiredApply bold font weight to increase watermark visibility. Use Yes for prominent stamps, No for subtle marks.Yes
Set ItalicsRequiredApply italic font style. Use No for standard watermarks; Yes for stylistic emphasis where needed.No
Set UnderlineRequiredApply underline text decoration. Typically No for watermarks; use Yes for specific legal or review marks.No
Font ColorConditionalHex color code for the watermark text (#RRGGBB). Defaults to black if omitted. Common: #FF0000 red, #808080 gray.#FF0000
RotateConditionalRotation angle in degrees (0 to 360). 45 produces the classic diagonal watermark. 0 for horizontal text stamps.45
Vertical AlignmentRequiredVertical anchor point: Top, Middle, or Bottom. Combined with Vertical Margin for fine position control.Middle
Horizontal AlignmentRequiredHorizontal anchor point: Left, Center, or Right. Combined with Horizontal Margin for fine position control.Center
Horizontal Margin (MM)ConditionalOffset from the horizontal edge in millimeters. Ignored when Horizontal Alignment is Center.0
Vertical Margin (MM)ConditionalOffset from the vertical edge in millimeters. Ignored when Vertical Alignment is Middle.0
OpacityRequiredTransparency from 0 (invisible) to 1 (fully opaque). Values 0.1 to 0.4 create semi-transparent watermarks that preserve readability.0.3
Set BackgroundConditionalLayer position: Yes places watermark behind PDF content; No places it in the foreground. Background is the most common watermark setting.Yes

Output

The PDF4me Add Text Watermark module returns two fields on the output bundle:

FieldTypeWhat it contains
Document NameStringOutput PDF filename derived from the PDF File Name input. Use in the destination upload module File Name field.
Document DataBufferBinary watermarked PDF as a Make buffer. Map into Google Drive Upload, Dropbox Upload, SharePoint Create File, or Email Send attachment.

Scenario Examples

The PDF4me Add Text Watermark module in Make provides comprehensive scenario templates for text watermark automation:

Automated Confidential Document Watermarking Scenario

Transform your document security with automated confidential marking:

  1. Trigger: Confidential document generated or downloaded
  2. Add CONFIDENTIAL Watermark: Apply diagonal text watermark with 45 degree rotation
  3. Set Red Color and 0.3 Opacity: High visibility, semi-transparent stamp
  4. Upload Marked PDF: Save to secure documents folder
  5. Email Authorized Users: Send with clear confidential marking

Business Benefits: Marks 150+ confidential documents monthly, prevents unauthorized distribution, ensures compliance with security policies.

Industry Use Cases & Applications

  • Confidential Marking: Mark sensitive documents as confidential
  • Classification Labels: Add document classification watermarks
  • Security Notices: Apply security classification marks
  • Restricted Distribution: Mark documents with distribution limits

When Should I Use Add Text Watermark in Make?

Use Add Text Watermark when you need to apply a visible, human-readable status label to a PDF as part of an automated workflow. For image watermarks or logo overlays, use the Add Image Watermark module instead. If you need to mark every document leaving a specific Make folder automatically, combine this module with a Dropbox or Google Drive Watch Folder trigger and a filter to apply different stamp text based on the file name or metadata. According to the Make documentation on PDF4me, all PDF4me modules share the same connection and API key, so you can mix watermark, conversion, and OCR steps in a single scenario at no additional connection cost.

Common Questions

How do I add a text watermark to a PDF in Make automatically?

Add the PDF4me Add Text Watermark module after any trigger that delivers a PDF in your Make scenario. Map PDF File Name and PDF File from the prior download module, set Stamp Text to your label, configure Opacity and Rotate, then map Document Data from the output into an upload module. Run the scenario once with a test file to confirm placement before scheduling. For step-by-step setup, see PDF4me Make documentation.

What parameters control watermark transparency and rotation in Make?

The Opacity field controls transparency on a scale from 0 (invisible) to 1 (fully opaque). Values between 0.1 and 0.4 produce semi-transparent watermarks that keep the underlying document readable, which is the standard for CONFIDENTIAL or DRAFT stamps. The Rotate field accepts degrees from 0 to 360. Set it to 45 for a diagonal watermark, which is the most recognizable orientation for document marking. The PDF4me API reference documents the full range of values for both parameters.

Can I apply a watermark to specific pages only in Make?

Yes. The Pages parameter accepts 0-based page indices as comma-separated values (e.g. 0,2,4) or ranges with a hyphen (e.g. 0-3 for the first four pages). Leave the field empty to watermark all pages automatically. This is useful when your document has a cover page that should not receive the watermark, or when only the body pages need marking.