URGENT - Merge XFDF API giving [502] internal error

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Hello, I’m Ron, an automated tech support bot

While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:

Guides:

• Merging XFDF using the Express REST API - Body params
• Merge & extract annotation in PDF.js Express - Getting started
• Migrating from PDF.js Express to PDFTron - 4. Updating merge and extraction code

APIs:

• ExpressUtils(optionsopt) - # async merge() → {Promise.}
• Core.Math.Rect - exportNormalize()
• Chaining API calls

Forums:

• Merging XFDF using the Express REST API length exceeded error
• Merge XFDF and file data gets error with large file
• Merging XFDF using the Express REST API