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How to Fix Cannot Combine PDF Files Due to Security Settings
Question details
The user is unable to combine multiple PDF files into a single document because one or more files have active security restrictions.
- Product
- PDF Editors
- Device & OS
- iPadOS
- Scenario
- Attempting to merge two or more PDF files using a PDF management application on an iPad Pro.
- Observed behavior
- An error message appears stating the operation cannot be completed because of the document's security settings, even though the user has a premium subscription.
Ensure you have the necessary permissions password for the secured PDF files, as premium application subscriptions do not bypass document-level encryption or restrictions.
Remove Security Restrictions Before Combining
Unlock the protected document by entering its permissions password to remove editing and combining restrictions.
PDF documents can be locked by their authors to prevent unauthorized editing, printing, or combining. To merge a secured PDF, you must first remove these protections using a capable PDF editor.
Launch your PDF editor and open the specific PDF file that contains the security restrictions.
Navigate to the document's 'Properties' or 'Security' tab, usually found in the File or Protect menu.
Locate the Security Method dropdown and change it from 'Password Security' to 'No Security'.
When prompted, type in the permissions password to authorize the removal of the document's restrictions.
Save the file as a new, unrestricted document. You can now successfully select this new file and combine it with your other PDFs.
Request an Unrestricted Copy from the Owner
If you do not have the permissions password, ask the original author for an unlocked version of the PDF.
Combine and Manage PDF Files Easily with WPS Office
WPS Office provides a highly efficient and user-friendly PDF toolkit that allows you to easily merge, split, and edit PDF documents. It fully supports standard PDF formats and simplifies file management across all your devices.
- 1. Open WPS Office: Launch WPS Office and navigate to the PDF tab on the home screen.
- 2. Select Merge PDF: Click on the 'Merge PDF' tool located in the PDF toolkit menu.
- 3. Add Your Files: Click 'Add Files' to select the unlocked PDF documents you want to combine.
- 4. Start Merging: Arrange the files in your preferred order and click 'Merge' to instantly create your combined document.
Frequently Asked Questions
Why does my premium PDF editor say I cannot combine files?
A premium subscription unlocks advanced editing tools within the software, but it does not bypass the specific passwords or encryption set by a document's author. You still need the correct permissions password to alter a secured file.
Can I combine secured PDFs without the original password?
No, standard PDF software requires you to enter the correct permissions password to remove security restrictions before you can combine, edit, or extract pages from the file.
How do I know if my PDF is protected by security settings?
Usually, a protected PDF will display a padlock icon or the word '(SECURED)' next to the file name in the title bar of your PDF reader. You can also check the 'Document Properties' under the 'Security' tab.
