API File Extension

API file icon

Acrobat Plug-in

What is a API file?

The API extension is related to Acrobat Plug-in and is classified in the Plugin Files category, which contains 252 files.

Adobe, the developer of the Acrobat Plug-in (API), has released file format and 81 programs designed to handle them.

API file support extends to various operating systems, including Windows and Mac OS. There are 2 programs available to import a API file, including popular tools like Adobe Acrobat Pro DC and Adobe Acrobat Reader DC.

File Signature

HEX code: 4D 5A 90 00 03 00 00 00 04 00 00 00 FF FF 00 00 B8. ASCII code: MZ.

How to open a API file?

If you are having trouble opening a API file, it usually means the right software is not installed. Choose a program from the list that matches your operating system. Next, visit the official website of the developer, download the software, and install it on your device.

Thanks to their popularity, Adobe Acrobat Pro DC and Adobe Acrobat Reader DC are often the go-to programs for managing API files. If you want the most recent release of Adobe Acrobat Pro DC, head over to the Adobe site and download the version designed to run on all platforms.

After completing the installation, API files should be recognized by the system and linked to Adobe Acrobat Pro DC.

Set Adobe Acrobat Pro DC as your default API viewer

Set default app to open files on Mac

  1. Right-click or Control + left-click on the desired API file to open a menu of available actions;
  2. Choose "Open in Application" and click "Other";
  3. In the lower section of the window, you’ll find the "Enable" menu, with "Recommended Programs" pre-selected as the default option;
  4. Select "All Programs" in this menu, and then search for Adobe Acrobat Pro DC. Check the box next to "Always open in app" to make sure it’s the default option.

Change a default app in Windows

  1. To get started, right-click your API file, then choose "Open With" and select "Choose Another Application" from the context menu;
  2. From the list of applications in the pop-up window, find and select Adobe Acrobat Pro DC as your desired application;
  3. Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening API files.

Solving Common API File Challenges

While API files can sometimes present difficulties, most problems can be resolved quickly with minor software modifications. Check the tips below to help solve them.

What Causes Adobe Acrobat Pro DC to Crash Frequently?

Insufficient software updates are a likely cause of Adobe Acrobat Pro DC crashes. Be sure to install the latest updates for Adobe products.

A simple restart of your computer can often fix many common problems, which is why it is the recommended first step before making any adjustments to your software settings.

How can I restore a damaged API file?

Start a data recovery program and open the damaged API file. Then, choose the "Repair" option from the menu. Allow the recovery process to complete, which will automatically repair the damaged plugin files.

How can I determine if my API file is damaged?

Characteristics of corrupted API plugin files can include:

  • Adobe Acrobat Pro DC or other programs stop responding or crash when trying to handle the file;
  • Error notifications appear during file manipulation;
  • When opening the file, errors occur or the inability to access its contents;
  • Unexplained API file size inflation;