SharePoint Document Issues

Fix Acrobat Web Creating Duplicate SharePoint PDFs Instead of Overwriting

Jason MillerJason Miller Oct 28, 2026 868 views

Question details

When attempting to save an edited PDF using Acrobat Web in a SharePoint document library, a duplicate file is generated instead of saving changes to the original document.

Fix Acrobat Web Creating Duplicate SharePoint PDFs Instead of Overwriting
Product
Adobe Acrobat Web, SharePoint
Device & OS
not provided
Scenario
Editing and saving a PDF file hosted on a SharePoint document library using the Acrobat web interface.
Observed behavior
Acrobat web creates a duplicate version of the PDF with '1' appended to the filename instead of overwriting the original file.
Before you start

Verify that your internet connection is stable and that you are correctly signed into your Microsoft 365 and Adobe accounts with the appropriate permissions for the SharePoint library.

Solution 1Recommended

Verify SharePoint Permissions and Check-Out Status

Ensure that the original PDF is not locked by another user and that you have sufficient permissions to overwrite files in the SharePoint library.

SharePoint relies heavily on file locking and versioning. If a file is checked out by someone else, or if your library requires manual check-outs before editing, external tools like Acrobat Web will fail to overwrite the original and will spawn a duplicate file to prevent data loss.

1
Check file status in SharePoint

Navigate to the SharePoint document library in your web browser and locate the original PDF file.

2
Look for the checked-out icon

Hover over the file name. If there is a small red arrow icon over the file type icon, the file is checked out by another user. You must wait for them to check it back in.

3
Verify your edit permissions

Right-click the file, select 'Manage Access', and ensure that your account is listed with 'Can edit' permissions.

Verify SharePoint Permissions and Check-Out Status
Check-Out Requirements: If your SharePoint library settings mandate checking out documents before editing, you must manually check out the PDF in SharePoint before opening it in Acrobat Web.
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Frequently Asked Questions

Why does SharePoint append a '1' to my PDF filename?

SharePoint appends a '1' to a filename when it attempts to save a document but detects that a file with the same name already exists and cannot be overwritten. This usually happens due to permission limitations, active check-outs, or file locks preventing the original file from being updated.

How do I force SharePoint to overwrite an existing PDF?

To overwrite an existing PDF, ensure you have edit permissions and that the file is not checked out by another user. Then, upload a new version of the PDF with the exact same filename. SharePoint will detect the name match and prompt you to replace the file, keeping the version history intact.

Does Acrobat Web automatically check out files in SharePoint?

Acrobat Web's integration with SharePoint may not automatically trigger the check-out process depending on your specific library's versioning and check-out settings. If the library requires a manual check-out, Acrobat Web will fail to overwrite the file, resulting in a duplicate.