Incorrect Order of Merged Documents in Merge Operation

[vivek781113]

The merge operation within the service is not merging documents in the correct order, resulting in the output merged document having an unexpected sequence.

Below is the snap of postman request. The merged document is having the sequence as 3 then 1 then 2. Any help would be appreciated.

Gotenberg service

[gulien]

Hello @vivek781113,

That’s weird. Could you share the debug logs?

[jimmy-zhuENV]

same problem as the one described above. if i run this in the terminal
curl --location 'https://demo.gotenberg.dev/forms/pdfengines/merge'
--form 'chin.pdf=@"/chin.pdf"'
--form 'hin.pdf=@"/hin.pdf"'
--form 'korean.pdf=@"/korean.pdf"'
-o ~/Downloads/merged.pdf

The merged pdf is in the wrong order. (eg chin.pdf, korean.pdf, hin.pdf)

I have tried multiple versions of gotenberg locally and always see this same problem.

[gulien]

Just tested it on the demo instance, and it's working perfectly fine 🤔

PDF_Engines_Merge-1709630433515.pdf

Are there some hidden characters in your filename?

[jimmy-zhuENV]

These were the files that I was trying to merge in order.
Shouldnt be any hidden characters as I created these from a blank word document.

Part_ONE.pdf
Part_TWO.pdf
Part_THREE.pdf

[gulien]

In this case, they will be merged in the following order:

1. Part_ONE.pdf
2. Part_THREE.pdf
3. Part_TWO.pdf

(Alphabetically, ONE > THREE > TWO).

With Gotenberg 8.2, if you don't want to play with letters, just prefix your files with numbers to set the merge order.

[jimmy-zhuENV]

This makes a lot of sense. Thanks for the clarification!