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Merge pdf files using PAD

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Posted on by Th11

Hi All,

I am splitting the giant PDF file into single page pdf files by using "Extract pdf file pages to new pdf file" action. If the filename has more than 1page it is adding sequential suffix at the end of the file names like below.

Eg:

test file (2).pdf

test file (3).pdf

test file (4).pdf

test file (5).pdf

test file (6).pdf

test file (7).pdf

test file (8).pdf

test file .pdf

I need to merge these files into single pdf file. I am using the below action to get the files and using merge pdf file action to merge the files. But after it got merged the pdf file page is not in the proper order. I am not sure what i am missing. Please help me out. Thanks in advance!

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Power Automate Desktop

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Agnius Bartninkas Most Valuable Professional on at

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You should use the numeric suffix on the 1st file as well, so it has a 0 or a 1 at the end. Otherwise, it will always be captured as the last item.

Also, preferably use padded suffixes, so that if there's less than 100 files, use 01, 02, 03, <...>, 11, 12, 13, etc. If there's more than 100, pad it with leading zeros so that it has 3 digits. This way they will be sorted properly.

To pad text, use the Pad text action on your suffix.

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AT88 34 on at

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Hi @Agnius ,
Thank you for your response. I tried to include padded suffix but it is not sorting in a correct order. It is taking a order "Extract pdf pages into new pdf file" action output and it is sorting in the same order like this.
test file (2).pdf
test file (3).pdf
test file (4).pdf
test file (5).pdf
test file (6).pdf
test file (7).pdf
test file (8).pdf
test file .pdf
In the above example test file.pdf should be the first file and then it should go like 2,3,...8

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Agnius Bartninkas Most Valuable Professional on at

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It is not the first file, because it has no numeric suffix. If you opened the folder in Windows Explorer and sorted it by file name, you would notice the same - the file without a suffix would be the last one.

Since you set the file name when extracting the page, you should be able to control the suffixes, so set it appropriately on the first page, too. The sorting will then work.

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Th11 on at

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Hi @Agnius ,
Thank you so much for your response. can you please post a screenshot for when extracting the pdf page, by using the pad text action to add the suffix number. so that while it merge it will sort the pages in correct order.
I tried from my side. But its not sorting the files properly. please help.

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Nived_Nambiar 18,138 Super User 2026 Season 1 on at

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Hi @Th11

After splitting the pdf file to multiple pdf files. Use Rename file to rename the file test file .pdf to test file (1) .pdf

In that way this would work in merging the pdf files.

Thanks & Regards,
Nived N 🚀

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