This error comes from Make.com and usually means the module ran for too long — often due to large files or complex operations.
Why It Happens
Make has a 5-minute execution time limit per module. When PDF.co is processing large or complex files synchronously, the operation may time out and trigger this error.
How to Fix It: Use Async Mode
To avoid timeouts, run the PDF.co operation asynchronously.
In the PDF.co Module:
Click “Show Advanced Settings”
Under Execution Mode, select: ➜ Async for Large Docs
This tells PDF.co to start the job in the background and return a jobId instead of waiting for it to finish.
What to Do Next
Add a Delay module (e.g., 30–60 seconds)
Use the PDF.co Check Job Status module with the returned jobId
If the job is completed, proceed with the next step
If not, loop or handle as needed
NOTE: Async mode is ideal for handling OCR tasks, merging/splitting large files, etc.