Fix Adobe PDF Pack Combine Files Showing Add Instead of Open
Question details
The user is unable to complete the combine-PDF workflow because the software displays an Add option instead of Open, despite having an active Adobe PDF Pack subscription.

- Product
- Adobe PDF Pack
- Device & OS
- not provided
- Scenario
- Attempting to merge multiple PDF files using the Combine Files feature in Adobe.
- Observed behavior
- The interface displays an Add button instead of the expected Open button, preventing the user from successfully combining the PDF files.
Ensure you know the exact email address (Adobe ID) associated with your paid Adobe PDF Pack subscription, as logging in with a different account is the most common cause of this issue.
Verify Your Application and Sign-In Account
Ensure you are using the correct software (Adobe Reader DC, not Acrobat DC) and are logged in with the Adobe ID linked to your paid subscription.
Adobe PDF Pack is an online service that integrates with the free Adobe Acrobat Reader DC desktop application. If you accidentally launch the full Adobe Acrobat DC version without an Acrobat subscription, the tools will not work correctly.
Open your Adobe application and check the title bar. Confirm that you are running 'Adobe Acrobat Reader DC' and not 'Adobe Acrobat DC'.
Click on the profile icon or account section in the top right corner of the application to see the currently signed-in email address.
If the email is incorrect or the subscription is not recognized, sign out. Restart the application and sign back in using the correct Adobe ID associated with your PDF Pack.
Navigate to the Tools menu and select Combine Files to see if the 'Open' option is now functioning properly.
Use Adobe Acrobat Online Services
If the desktop application continues to malfunction, use the web-based version of the Combine Files tool included in your subscription.
Combine PDFs Easily with WPS Office
Avoid subscription confusion and app version conflicts by using WPS Office to quickly combine multiple PDF files. WPS provides a comprehensive and user-friendly PDF toolkit that gets the job done seamlessly.
- 1. Open WPS Office: Launch WPS Office on your computer and navigate to the PDF tab.
- 2. Select the Merge Tool: Click on 'Merge PDF' from the available PDF tools menu.
- 3. Add your files: Click 'Add Files' and select the PDF documents you want to combine from your computer.
- 4. Merge the documents: Arrange the files in your preferred order and click 'Merge' to create and save your new combined PDF.

Frequently Asked Questions
Why does Adobe Acrobat DC ask me to pay when I have a PDF Pack subscription?
Adobe PDF Pack is designed to work with the free Adobe Acrobat Reader DC or via online web services. If you install and open the full Adobe Acrobat DC application, it will not recognize the PDF Pack subscription and will prompt you to purchase an Acrobat Pro or Standard license.
Can I combine files using Adobe PDF Pack on my mobile device?
Yes, you can use the Adobe Acrobat Reader mobile app. Make sure you sign in with the exact Adobe ID linked to your PDF Pack subscription to unlock premium tools like Combine Files.
What should I do if my subscription is active but still not recognized in Reader DC?
Try signing out of the Adobe Reader DC application, closing the program completely, reopening it, and signing back in. This forces the application to refresh your account permissions.




