Security Disclaimer

This package processes PDF data directly within the main execution context and does not utilize sandboxing, isolated workers, or any form of execution containment.
Accordingly, it provides no warranties or representations, whether express or implied, regarding safety, security, performance, or suitability for handling untrusted, user-supplied, or potentially malicious PDF content.

The software is provided “as is”, without any guarantees of reliability or protection, and no assurance is given that it can safely process adversarial input.
Use in security-sensitive environments or with sensitive data is not recommended unless independent validation, isolation, and appropriate hardening measures are implemented.

Important Information

Your support in the ongoing development of this library would be sincerely appreciated. 🙂

@aaqu/node-red-aaqu-pdf

A Node-RED node for operating on a PDF document.

This module provides a custom Node-RED node that:

• get single page from pdf
• display single page in flow

Get single page form pdf (file, http)

Display page in flow - need node-red-contrib-image-tools -> viewer

Create empty PDF and draw text

Features

• Create empty PDF and draw text
• Select a single page from pdf to buffer
• Convert PDF page buffer to base64 image

Installation

Run the following command inside your Node-RED user directory (typically ~/.node-red):

npm install @aaqu/node-red-aaqu-pdf

Then restart Node-RED and the new node will appear in the editor palette.

Nodes usage

pdf get page

• msg.payload - pdf buffer
• msg.pdfPage – optional runtime override for the page number (starting at 1).

pdf multi page buffer → [pdf get page] → pdf single page buffer

where:

• pdf multi page buffer input multi page buffer.
• pdf get page extracts the configured page (or the page defined in msg.pdfPage) default page no 1.
• pdf single page buffer return single page buffer.

pdf to img

• msg.payload - pdf buffer input

pdf buffer → [pdf to img] → out base64

where:

• pdf buffer a pdf file as buffer.
• pdf to img extracts the page to image.
• out base64 return image in base64 (to display use node-red-contrib-image-tools -> viewer).

pdf create

create PDF document

pdf add page

adding a page

pdf save

buil final PDF

pdf draw text

add text to page PDF

Use cases

• Fast display pdf in flow editor.
• Extracting pages from automatically generated reports.
• Preparing single-page documents for downstream processing.
• Splitting large PDFs into smaller parts.
• Creating lightweight attachments for email or APIs.

License

Apache-2.0