Fix Adobe Acrobat Cloud Storage Error on Amazon Fire 7 Tablet
Question details
Users are unable to upload PDF files to Adobe Document Cloud from their Amazon Fire tablet due to an inaccurate memory error.

- Product
- Adobe Acrobat Reader
- Device & OS
- Amazon Fire 7 Tablet (Android)
- Scenario
- Uploading or downloading PDF documents using Adobe Document Cloud on a mobile device.
- Observed behavior
- The application returns a 'Not enough available memory' error message when attempting an upload, even though both the local device and cloud storage appear to have plenty of available space.
Verify the exact file size of the PDF you are trying to upload, as mobile applications often have strict data limitations compared to their desktop counterparts.
Check PDF File Size and Document Cloud Quota
Ensure your document complies with the Adobe Acrobat Android app limits and your free account storage quota.
Free Adobe Document Cloud accounts are strictly limited to 2 GB of total storage. Furthermore, the Acrobat Reader application for Android and Amazon Fire tablets has a hard limit: it cannot upload or download individual files larger than 100 MB. The 'Not enough available memory' error is usually triggered when these invisible thresholds are crossed.
Open the 'Files' or 'Docs' application on your Amazon Fire 7 tablet. Locate your target PDF, long-press the file, and tap 'Properties' or 'Details' to confirm it is under 100 MB.
Log into your Adobe Document Cloud account via a web browser. Check your account settings to verify that your uploaded files have not exceeded the 2 GB limit for free accounts.
Use your tablet's file manager to check the local 'Downloads' folder. PDFs downloaded through Acrobat Reader are saved directly to local storage rather than being kept inside the application itself.

Use a Desktop Computer for Large PDFs
Bypass the mobile app's 100 MB upload restriction by using the desktop version of Adobe Acrobat.
Manage and Edit PDFs Effortlessly with WPS Office
Avoid restrictive mobile upload limits and confusing storage errors. WPS Office provides a lightweight, highly compatible suite for reading, editing, and managing large PDF files right from your tablet or desktop.
- 1. Install the App: Download WPS Office from your device's app store and open the application.
- 2. Open PDF Documents: Tap on the 'PDF' tab on the home screen to automatically scan and view all PDF files stored on your device.
- 3. Edit and Sync: Tap any file to open it. Use the built-in PDF tools to annotate, compress, or seamlessly sync large files to WPS Cloud.

Frequently Asked Questions
Why does Adobe Acrobat say 'Not enough memory' when I have plenty of storage?
On Android and Amazon Fire tablets, this error is a default message triggered when you try to upload a PDF larger than 100 MB, or when your total Document Cloud storage reaches its 2 GB free limit, regardless of your tablet's local free space.
Where are my downloaded PDFs saved on the Amazon Fire 7 tablet?
Files downloaded via the Adobe Acrobat Reader app are saved to your tablet's local storage. You can find them by opening the built-in 'Docs' app or a file manager and navigating to the 'Downloads' folder.
Can I increase the 100 MB upload limit on the mobile app?
No, the 100 MB file limit is a hard restriction coded into the Adobe Acrobat Reader application for mobile devices. To manage larger files, you must use a desktop computer or a web browser.




