Quick Troubleshooting Guide for IronPDF

Updated:June 22, 2025

For general function issues, please try the following suggestions:

Please ensure that you have the latest version (2015-2022) of Microsoft Visual C++ Redistributable for Visual Studio installed on your target machines. You can find the latest downloads here: Microsoft Visual C++ Redistributable latest supported downloads
x86 machines require x86 only.
x64 machines require both x86 and x64 versions.
Ensure Full Control permissions are applied for the following users to your system's default temp folder (on Windows, this is normally /windows/temp):
- AppPool Identity/IIS User (typically IUSER)
- NetworkService
- ASPNET (where applicable)
For more information, you can refer to the IronPDF Installation Guide.
Set a new Installation.TempFolderPath in a new directory outside of Program Files, Temp, Users for the users listed in step 4: Set Temp PDF File Path
Clean the project and remove dependencies:
- Wipe all Windows temp files and cache folders on your development and server machines.
- Remove all traces of the project and DLLs.
- Manually delete IronPdf from the temp folder or the specified Installation.TempFolderPath.
- Uninstall the library, making sure to tick the "Remove dependencies" checkbox.
Clear NuGet cache:
- Manually remove the NuGet cache from this location: %userprofile%\.nuget\packages.
- Clear the cache automatically through Visual Studio by navigating to Tools > NuGet Package Manager > General, and then clicking Clear All NuGet Cache(s).

If these steps do not resolve the issue, please see the following link for instructions on requesting further assistance from our engineering team: Troubleshooting and Assistance Request

Chaknith Bin

Chat with engineering team now

Software Engineer

Chaknith works on IronXL and IronBarcode. He has deep expertise in C# and .NET, helping improve the software and support customers. His insights from user interactions contribute to better products, documentation, and overall experience.