How to Fix Acrobat Crashing When InDesign Saves PDFs to AFP Server
Question details
Users experience unexpected application crashes in Adobe Acrobat and InDesign when exporting PDF files directly to an AFP-based network server (like a QNAP NAS) on macOS.

- Product
- Adobe Acrobat, Adobe InDesign
- Device & OS
- macOS 10.13.6 or newer
- Scenario
- Exporting PDF documents from InDesign directly to an AFP network shared drive, specifically when the option to view the PDF post-export is enabled.
- Observed behavior
- Both Acrobat and InDesign randomly crash, the shared AFP network drive disconnects, and the InDesign file saving process is severely disrupted.
Ensure your Mac has a stable connection to your local network and verify if your NAS device supports modern SMB file sharing instead of the legacy AFP protocol.
Disable the 'View PDF after Exporting' Option
This is the most effective and quickest workaround to prevent Acrobat from launching and subsequently crashing during the export process over the network.
The crash is often triggered by Acrobat attempting to read the newly generated PDF file over the AFP network protocol before the server has finished securely registering the file. Disabling this automatic launch prevents the conflict entirely.
In Adobe InDesign, go to the top menu and select 'File' > 'Export', or press Cmd+E on your keyboard.
Choose your AFP network folder (e.g., QNAP or Drobo NAS) as the destination for your PDF file and click 'Save'.
In the 'Export Adobe PDF' dialog box, navigate to the 'General' tab. Under the 'Options' section, uncheck the box labeled 'View PDF after Exporting'.
Click 'Export' to complete the saving process. The PDF will save to the server safely without launching Acrobat and causing a crash.

Export to a Local Mac Drive First
Bypass the AFP network protocol conflicts entirely by saving the PDF to your local hard drive before moving it to the NAS.
Switch from AFP to SMB Protocol
macOS has deprecated AFP in favor of SMB, which offers better stability with modern Adobe applications and network transfers.
Experience Stable PDF Viewing and Editing with WPS Office
If you are experiencing constant crashes with your current PDF software over network drives, consider switching to WPS Office. It provides a lightweight, highly compatible, and fast PDF reader and editor that won't bog down your macOS system or struggle with standard network shares.
- 1. Download WPS Office: Visit the official WPS website to download the free installation package for macOS.
- 2. Install on Your Mac: Open the downloaded installer and follow the on-screen instructions to set up the software.
- 3. Set as Default PDF Reader: Right-click any PDF file, select 'Get Info', change 'Open with' to WPS Office, and click 'Change All' for a crash-free reading experience.

Frequently Asked Questions
Why does exporting to an AFP server cause Acrobat to crash on newer macOS versions?
Apple deprecated the AFP (Apple Filing Protocol) in macOS 10.13 and newer, shifting official support toward the SMB protocol. This deprecation causes network unresponsiveness and random disconnects when high-demand applications like Acrobat and InDesign try to write and read data simultaneously over AFP.
Can I permanently disable 'View PDF after Exporting' in InDesign?
Yes. If you uncheck 'View PDF after Exporting' during a standard export, InDesign will remember this preference for future exports that use the same PDF preset. You can also permanently edit your custom PDF presets via 'File' > 'Adobe PDF Presets' to ensure the box remains unchecked by default.
Is SMB better than AFP for Mac users working with NAS drives?
Yes. For macOS 10.13 and later, SMB (Server Message Block) is the default, recommended protocol by Apple. It provides better cross-platform compatibility, faster performance, and significantly increased stability for accessing files on NAS devices like QNAP or Drobo compared to legacy AFP.
What should I do if my older NAS drive only supports AFP?
If your legacy NAS does not support SMB connections, your best and safest option is to export your PDFs from InDesign to a local drive on your Mac first. Once the file is safely generated on your local disk, you can manually copy or drag the file into your AFP network share using Finder.




