PDF Opening Issues

How to Fix Acrobat Error 15 'Problem Reading PDF' on macOS

Natalie TaylorNatalie Taylor Nov 5, 2026 868 views

Question details

The user is unable to open a PDF in Acrobat Pro 2020 on macOS Catalina due to Error 15, even though the file opens perfectly in Apple Preview and PDF Expert.

How to Fix Acrobat Error 15: Problem Reading PDF on macOS
Product
Adobe Acrobat Pro 2020
Device & OS
macOS Catalina
Scenario
Attempting to open and view a PDF document on a Mac.
Observed behavior
Acrobat displays the error message 'There was a problem reading this document (15)' and fails to display the PDF, whereas alternative PDF readers render it successfully.
Before you start

Check if the error occurs with a single PDF file or all PDF files, and ensure the document is saved locally on your Mac's hard drive rather than opening it directly from an email client or cloud drive.

Solution 1Recommended

Recreate or Re-export the Corrupted PDF Document

If only one specific file is affected, its structure might be slightly incompatible with Acrobat's strict reading standards. Re-saving it from an app that successfully reads it can fix the underlying structure.

Apple Preview and other lightweight PDF readers are often more forgiving with minor file corruptions or non-standard code structures than Adobe Acrobat.

1
Open the file in Apple Preview

Locate the problematic PDF on your Mac, right-click (or Control-click) it, and select 'Open With' > 'Preview'.

2
Export as a new PDF

In the top menu bar of Preview, click 'File' and then select 'Export as PDF'. Choose a new file name and save it to your desktop.

3
Test the new file

Launch Adobe Acrobat Pro 2020 and attempt to open the newly exported PDF file to verify if Error 15 is resolved.

Recreate or Re-export the Corrupted PDF Document
Alternative Export Method: If you have PDF Expert, you can also open the file there and use the 'Save As' or 'Flatten' feature to generate a fresh, compatible PDF copy.
Free PDF Reader & Editor

Easily Open and Edit PDFs with WPS Office

If Adobe Acrobat consistently throws reading errors, WPS Office provides a robust, built-in PDF reader and editor that flawlessly handles all standard PDF documents without strict structural rejections.

  1. 1. Install WPS Office: Download and install the WPS Office application for Mac from the official website.
  2. 2. Open the PDF File: Launch WPS Office, click 'Open' on the home screen, and select the PDF file that Acrobat failed to read.
  3. 3. View and Edit: Read, annotate, or edit your PDF document smoothly using the built-in WPS PDF tools.
Seamlessly open, view, and read PDFs without 'Error 15' compatibility issues.Fully compatible with standard PDF structures and Microsoft Office formats (Word, Excel, PowerPoint).Lightweight software that runs quickly on macOS, Windows, and mobile devices.Free built-in tools to annotate, merge, and convert PDFs easily.
microsoft office alternative - wps office

Frequently Asked Questions

Why does Acrobat show Error 15 while Apple Preview opens the PDF fine?

Adobe Acrobat adheres to very strict PDF structural and syntax standards. If a PDF is generated by a third-party tool with minor structural errors, Apple Preview might ignore the errors and render the file, whereas Acrobat flags it as a damaged document and displays Error 15.

Does Error 15 mean my PDF data is permanently lost?

No. Since the file can still be opened in other PDF readers like your Mac's built-in Preview or PDF Expert, the data is completely intact. You simply need to re-export or 'Print to PDF' from one of those working applications to fix the underlying code syntax for Acrobat.

Can updating macOS fix Acrobat Error 15?

While macOS updates improve overall system stability, Error 15 is specifically an Adobe Acrobat rendering error related to file structure. Updating Acrobat itself or fixing the individual PDF file is far more likely to resolve the issue than updating macOS Catalina.