An incorrect structure was found in the pdf file

[flip!]

I am trying to move one page in the thumbnails view of a 16 page pdf. When I drag and drop the page I get this error:

"An incorrect structure was found in the pdf file" and it will not move the page.

What can I do to fix this without starting over?

I am using Adobe Acrobat Pro DC

Thanks

[Cari Jansen · Accepted solution]

Are you able to save a copy?

or maybe try the following (not sure if that works, but anything is worth a try I guess, I found this on acrobatusers.com for a similar issue in Acrobat XI Pro):

1. Launch Acrobat, but do not open any files
2. Choose File > Create > Combine Files into a Single PDF
3. Click Add Files
4. Navigate to the PDF that's causing issues, select it and click Add Files.
5. Click Combine, Binder1.pdf is created
6. File > Save As

Now try and see if you an move the pages around in this PDF. (fingers crossed)

[LStehle]

I did not have luck with this. Seems like a silly question, but how do I know which file caused the issue? I'm thinking its an excel file I PDF, but I've tried this combine approach twice and still getting the same issue if I try to edit the PDF or move pages through thumbnails.

[Test Screen Name]

This is usually bad tagging (accessibility info) in the file and can be fixed by deleting all tags.

[JAM1411]

This should be the correct answer! This error message occurred for me when I was trying to replace pages. I was unable to save. Removing tags solved this for me. Thank you!

[ddlynne]

I have Adobe DC & XI standard and don't see the "remove tags" option.  Any suggestions for either of these versions?

[try67]

It's possible this command is only available in the Pro version of Acrobat,

not in the Standard version.

[pixelized007]

how do you do that?

[miked-work]

Thank you very much for this solution. 

[jayj33562658]

This worked.   moderator, please make this the correct solution!

[David2349247011eb]

https://community.adobe.com/t5/acrobat-discussions/how-do-i-remove-tags-from-a-pdf-document/td-p/851...

[Bruce Billedeaux]

I found that I had to do the "add to PDF" binder thing first then I could remove tags. That fixed the issue. 

[lucyj67960465]

this worked for me!  Thanks Much! 🙂

[libbydaddy]

That worked Ms. Jansen, thank you.

[jeffwill1969]

Worked perfectly.  Thank you!

[Heather29285763labg]

Worked for me! Thanks much!

[JJ@CKP]

Thank you, this worked for me. The incorrect structure error was created when I inserted a PDF into another much larger PDF. I deleted the files I inserted and then used the combine files option. The resultant PDF binder no longer had the error. The only caveat was having to move the files to the proper location, rather than being able to insert them where I wanted them. I don't like the functionality of the work around at all BUT IT SAVED MY ORIGINAL PDF by eliminating the structure error.

[michellebeyer]

Here is a guide on how to delete tags for those who need it.

How do I remove tags from a PDF document?

[biancad46609800]

Thank you! This resolved the problem!

[twilly910]

Thank you - removing the tags allowed me to replace the page in the PDF, which I was previously unable to do.However, I had a few fillable fields, and it kept most of them, but removed a few. SO I had to redo those one I replaced it in the PDF. Strange.... but thank you. It still saved me.

[miked-work]

Thank you, Adobe can be very frustrating.

[Verdoux Kai]

Bess you, internet stranger!!! 

[LWuth]

Thank you! This worked for me as well!

[jessk1981]

I've just encountered this problem as well. I attempted Cari's suggestion and it didn't solve the problem. I was able to print the PDF to PDF and solve the issue though.

[akrause2004]

The Print to PDF solution solved the problem for me. Awesome suggestion,....thank you !!!!!!