PDF Watermark Node

Add or remove watermarks in any PDF without writing a line of code.
Both text and image watermarks are supported, plus optional layer creation/deletion and page-range targeting — all powered by iText 7.

TaskType PdfWatermark | Package Automation.Core.Tasks

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⚙ Inputs

Label	Type	Required	Description
Local File Full Path	text	✔	Absolute path of the PDF to modify. The file is overwritten in-place.
Mode	picklist	✔	Insert Text · Insert Image · Delete

Insert Text / Image (common)

Input	Type	Default	Description
Layer Name	text	(blank)	Put watermark on this layer. Blank ⇒ merge into page content.
Text Location	picklist	Center	Anchor: Center, Top Left, Top Right, Bottom Left, Bottom Right.
Transparency	text	30	0 = fully transparent, 100 = opaque.
Page Range	text	1-	Pages to process – e.g. 1, 2-5, 1,3,7-.

Insert Text–only

Input	Default	Description
Watermark Text	CONFIDENTIAL	Text string.
Text Angle	45	Clockwise degrees.
Text Color (Hex)	#FF0000	Any hex code.
Font Size	24	Points.
Font Name	Helvetica	Helvetica, Courier, Times, Arial (uses system font).

Insert Image–only

Input	Default	Description
Image URL or Base64	(blank)	Path, URL or base64 string of the image.
Image Scale Percent	100	Resize relative to original (50 = half-size).

Delete–only

Input	Type	Description
Layers to Delete	list	Names of layers to remove (e.g. ["WatermarkLayer"]).

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🗃 Outputs

Name	Content
WatermarkedPdf	Path to the overwritten PDF (same as input).
Task Status / Message	Success / fail info.

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💻 Quick recipes

1 – Diagonal CONFIDENTIAL on every page

Mode                  Insert Text
Local File Full Path  C:\Docs\products.pdf
Watermark Text        CONFIDENTIAL
Text Angle            45
Transparency          40
Text Color (Hex)      #D00000
Font Size             32

2 – Company logo bottom-right, pages 1-3 only

Mode                  Insert Image
Local File Full Path  C:\Docs\handbook.pdf
Image URL or Base64   C:\Assets\logo.png
Image Scale Percent   30
Text Location         Bottom Right
Page Range            1-3
Transparency          20
Layer Name            LogoLayer

3 – Remove watermark layers after approval

Mode                  Delete
Local File Full Path  C:\Docs\quote.pdf
Layers to Delete      ["WatermarkLayer","LogoLayer"]

📝 Notes & Tips

Fonts – Helvetica, Courier, Times are embedded; Arial is loaded from the OS fonts folder. Supply a custom .ttf via its full path if needed.

Page Range – empty end (3-) means to last page.

Layering – leaving Layer Name blank merges watermark into /Contents (non-toggleable). Provide a name if you need to hide/show or delete later.

Image rotation – currently fixed; rotate beforehand if required.

⚠ Limitations

Large PDFs are processed via a temp file then copied over the original.

Encrypted PDFs must allow modification (reader uses SetUnethicalReading(true)).