This tutorial shows how to PDF Node.js developers can compare two PDF documents directly through the Aspose PDF Cloud REST API, using the official Aspose PDF Cloud SDK for Node.js. You’ll learn how to upload the source PDFs to cloud storage, run the comparison operation, and download the resulting file that highlights the differences.
Prerequisite
- Create an account and obtain API credentials to compare two PDF documents
- Download the Aspose.PDF Cloud SDK for Node.js
- Set up a Node.js project and add the SDK as a dependency
Steps to Compare PDF Documents using Node.js Low Code API
- Include the Aspose.PDF Cloud SDK and the core Node.js modules required for file handling.
- Initialize the PdfApi with your Aspose Cloud credentials so the application can communicate with the service.
- Choose which PDF will serve as the original, which one to compare against, and decide on a name for the comparison result file.
- Open the first PDF file and upload it to Aspose Cloud storage.
- Open the second PDF file and upload it to the cloud as well.
- Execute the PDF comparison operation to generate a new file that visualizes the differences.
- Inspect the API response to confirm that the comparison completed successfully.
- If the operation succeeded, download the resulting PDF and save it locally.
- Display a clear error message if the comparison fails, making troubleshooting straightforward.
These steps outline the complete workflow for comparing two PDF files using the Node.js REST API: connect to Aspose PDF Cloud, upload the PDFs, run the comparison, verify the response, and retrieve the diff‑highlighted result.
Code for PDF Comparison Tools using Node.js‑based API
Compare two PDFs using Node.js Low Code API is demonstrated in the sample above. Ensure the input files are already stored in the cloud storage. The output file name is specified in the PostComparePdf() method and should be used when downloading the result.
This article has guided you through the process of comparing two PDF documents using the Node.js REST Interface. To learn how to change a PDF password, see the article Change PDF Password using Node.js REST API.
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