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PDF4me

Comprehensive PDF and document processing: generate barcodes, convert files, extract data, manipulate images, and automate workflows with the PDF4ME API

Actions80

Overview

This node provides a "Repair PDF Document" operation that allows users to fix corrupted or damaged PDF files. It supports multiple input methods for the PDF file, including binary data from a previous node, a base64 encoded string, or a URL pointing to the PDF file. The node processes the input PDF and outputs a repaired version of the document.

Common scenarios where this node is beneficial include:

  • Automatically fixing PDFs that fail to open or display correctly due to corruption.
  • Repairing PDFs received from external sources before further processing or archiving.
  • Integrating into workflows that require guaranteed valid PDF files for downstream automation.

Practical example:

  • A user receives PDF invoices via email attachments that sometimes get corrupted during transmission. This node can be used to repair those PDFs automatically before extracting invoice data.

Properties

Name Meaning
Input Data Type Choose how to provide the PDF file to repair. Options: Binary Data, Base64 String, URL
Input Binary Field (When using Binary Data) Name of the binary property containing the PDF file
Base64 PDF Content (When using Base64 String) Base64 encoded content of the PDF file
PDF URL (When using URL) URL pointing to the PDF file to repair
Output File Name Desired filename for the output repaired PDF file (default: "repaired.pdf")
Async Enable asynchronous processing (true/false)

Output

The node outputs JSON data representing the repaired PDF file. The output includes the repaired PDF content, typically as binary data under a specified binary property, allowing subsequent nodes to use or save the fixed PDF file.

If the node supports binary output, it will contain the repaired PDF file's binary data, which can be saved or passed along in the workflow.

Dependencies

  • Requires an API key credential for the PDF repair service (configured in n8n credentials).
  • Internet access if providing the PDF via URL or if the repair service is cloud-based.
  • No additional environment variables are explicitly required beyond standard n8n setup.

Troubleshooting

  • Common issues:

    • Providing an invalid or inaccessible URL may cause failures.
    • Incorrect base64 encoding or corrupted binary input will prevent successful repair.
    • Missing or incorrect API authentication will result in authorization errors.
  • Error messages:

    • Errors related to input data format usually indicate mismatched input type and provided data.
    • Network or API errors suggest connectivity or credential problems.
  • Resolutions:

    • Verify the input data matches the selected input type.
    • Ensure URLs are accessible and correct.
    • Confirm API credentials are properly configured and valid.
    • Enable "Continue on Fail" in the node settings to handle individual item errors gracefully.

Links and References

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