Other PDF Issues

Fix Adobe Acrobat Slow When Creating PDF from JPG Files

John WilsonJohn Wilson Nov 3, 2026 869 views

Question details

The user is experiencing unusually slow performance when converting multiple JPG images into a single PDF document.

How to Fix Adobe Acrobat Slow When Creating PDF from JPG Files
Product
Adobe Acrobat
Device & OS
macOS
Scenario
Creating a PDF file from a batch of multiple JPG images.
Observed behavior
The conversion process is taking 15 to 20 minutes instead of the usual few minutes.
Before you start

Before troubleshooting, ensure you save your current work and temporarily disconnect your Mac from the internet to test if background syncing is causing the slowdown.

Solution 1Recommended

Test Conversion Offline and Disable Background Syncing

Disconnecting from the internet and pausing background Adobe services can determine if network synchronization is causing the extreme slowdown.

Often, background utilities like the Adobe Collaboration Synchronizer or Creative Cloud updaters attempt to communicate with servers during resource-intensive tasks. Disabling them temporarily isolates the problem.

1
Disconnect from the internet

Turn off your Wi-Fi or unplug your Ethernet cable so the Mac is completely offline.

2
Open Activity Monitor

Go to Applications > Utilities and launch Activity Monitor to observe running background processes.

3
Disable Adobe services

Locate processes related to Adobe Creative Cloud, Collaboration Synchronizer, and Adobe updater services, select them, and click the Stop (X) button to quit them.

4
Run the conversion again

Open Acrobat and try creating the PDF from your JPG files again to see if the processing speed improves.

Test Conversion Offline and Disable Background Syncing
Compare Results: If the conversion is fast offline, the issue is likely caused by Adobe attempting to sync files or update services over the network.
Fast and Free PDF Creator

Create PDFs from JPGs Instantly with WPS Office

If Adobe Acrobat continues to be slow or freeze during conversion, switch to WPS Office. It provides a lightweight, fast, and offline-friendly PDF tool that seamlessly converts multiple JPGs into high-quality PDFs without lagging.

  1. 1. Download and install: Download and install WPS Office on your Mac or Windows computer.
  2. 2. Open the PDF tool: Launch the WPS PDF application and select 'Picture to PDF' from the main tools menu.
  3. 3. Convert your files: Add your JPG files, arrange them in the desired order, and click 'Convert' to instantly generate your combined PDF document.
Lightning-fast JPG to PDF conversion without heavy background syncing.Fully compatible with standard PDF formats and Adobe Acrobat files.Lightweight application that consumes minimal system resources on macOS and Windows.User-friendly interface for easy merging and editing.
microsoft office alternative - wps office

Frequently Asked Questions

Why does Acrobat slow down significantly when converting images?

This often happens because Acrobat or Creative Cloud attempts to synchronize large files or run background updater services over the internet simultaneously, which monopolizes system resources and delays local processing.

Does file size affect the JPG to PDF conversion speed?

Yes, extremely high-resolution JPG files or a large batch of images require more memory to process. Downsizing images or converting them in smaller batches can help speed up the process.

Is there a way to permanently disable the Adobe Collaboration Synchronizer?

You can stop it temporarily via Activity Monitor, but preventing it from starting permanently usually requires modifying Adobe Creative Cloud startup preferences or using a third-party application manager to block the service.

Can I convert JPG to PDF without using Adobe Acrobat?

Absolutely. You can use built-in macOS tools like Preview, or lightweight, fast alternatives like WPS Office to combine multiple JPGs into a PDF much faster without background syncing delays.