Error prevents PDF preview in Outlook reading pane. Common after Outlook updates with Acrobat Reader
Unsupported file type is the most common reason for PDF opening issues. Outdated Adobe Reader or Acrobat programs can prevent PDF opening. Damaged PDF files may occur during creation or email transmission. Corrupted Adobe Reader installation can cause PDF opening problems. PDF files may be infected with viruses
Users receive "PDF Preview Handler error" when previewing files in Outlook. Issue typically occurs after upgrading to newer Outlook versions. Problem often arises when using Acrobat Reader as default PDF reader
AcroTray is an Adobe Acrobat extension that runs in the background. It helps open and convert PDF files and tracks Acrobat updates. AcroTray.exe is located in "C:\ProgramFiles\adobe\acrobat9.0\acrobat"
Large PDF files can slow down mobile connections and storage. PDFs combine text and images but can become extremely large. Compression reduces file size and makes sharing easier
Over 2M files have been split using Acrobat over 18-24 months. Tool allows splitting PDFs into up to 20 new files. Maximum file size is 1GB or less. Up to 19 divider lines can be used for page separation