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Edit → Sign PDF
AI-generatedSummary
Adds a signature image to selected pages of a PDF and returns the signed PDF as binary data. Provide the PDF and signature image as binary data, base64 strings, or URLs, then set the placement and output options.
Inputs
- Input Data Type (required) — Choose binary data from an incoming item (default field: data), a base64 PDF string, or a PDF URL.
- Signature Image Input Type (required) — Choose binary data from an incoming item (default field: data), a base64 image string, or a signature image URL.
- Output File Name — Filename for the signed PDF; defaults to signed_document.pdf.
- Document Name — Source PDF filename for reference; defaults to document.pdf.
- Image Name — Signature image filename; defaults to signature.png.
- Pages — Page numbers to sign, such as 1, 1-3, or 1,3,5; defaults to 1.
- Horizontal Alignment — Place the signature Left, Center, or Right; defaults to Center.
- Vertical Alignment — Place the signature Top, Center, or Bottom; defaults to Bottom.
- Width (Mm) and Height (Mm) — Signature dimensions in millimeters; defaults to 50 × 25. The UI declares ranges of 10–200 mm.
- Width (Px) and Height (Px) — Signature dimensions in pixels; defaults to 142 × 71. The UI declares ranges of 20–600 px.
- Horizontal and Vertical Margins — Set margins in millimeters (default 20 each) or pixels (default 57 each). The UI declares ranges of 0–100 mm and 0–300 px.
- Opacity — Signature opacity from 0 to 100; defaults to 100.
- Show Only in Print — Boolean option that defaults to true; the description says whether to show the signature in view and print.
- Background Signature — Set whether to place the signature in the background; defaults to false.
- Advanced Options: Custom Profiles — Optional JSON string for extra PDF4me profile properties.
- Binary Data Output Name — Name of the binary property in the n8n output; defaults to data.
Output shape
A single n8n item containing the signed PDF as binary data.
The binary property name is configurable with Binary Data Output Name. The supplied source pack shows only the operation's function signature, so further response details are not available.