pdf_toolkit.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like pdf_toolkit.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like 7za.exe - to follow. These files were created so that multiple programs (eg. Adobe Photoshop Lightroom) could share the same pdf_toolkit.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.
Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when pdf_toolkit.dll is attempted to be loaded either when Adobe Photoshop Lightroom is starting up, or in some cases already running. Some of the most common pdf_toolkit.dll errors include:
- Access Violation at address - pdf_toolkit.dll.
- pdf_toolkit.dll could not be found.
- Cannot find C:\Program Files\Adobe\Adobe Lightroom\pdf_toolkit.dll.
- Cannot register pdf_toolkit.dll.
- Cannot start Adobe Photoshop Lightroom. A required component is missing: pdf_toolkit.dll. Please install Adobe Photoshop Lightroom again.
- Failed to load pdf_toolkit.dll.
- The application has failed to start because pdf_toolkit.dll was not found.
- The file pdf_toolkit.dll is missing or corrupt.
- This application failed to start because pdf_toolkit.dll was not found. Re-installing the application may fix this problem.
Your pdf_toolkit.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Adobe Photoshop Lightroom), or deleted by a malware infection. Furthermore, pdf_toolkit.dll file corruption could be caused from a power outage when loading Adobe Photoshop Lightroom, system crash while loading pdf_toolkit.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.
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