What is an ADOC File?

How to Open, Edit, & Convert ADOC Files

Screenshot of a text file icon

A file with the ADOC file extension is most likely an AsciiDoc file. In short, these kinds of ADOC files are used to render a plain text file into a format that's easily readable, like to HTML or PDF.

AsciiDoc is a markup language for writing things like software documentation and notes, but it might also be used as the format for ebooks or slideshows, among other uses. Therefore, the .ADOC file extension indicates that the file is using the AsciiDoc language to store this information.

However, unlike other markup languages, ADOC files are really easy to use because they're just plain text files that can be easily read by anyone in their raw, text form, even without an understanding of the language.

Files in the AsciiDoc format don't typically remain in a file that has the .ADOC extension, but are instead written with the AsciiDoc language and then translated to HTML, PDF, or some other text-based format. You can see how to do that below.

If your ADOC file isn't an AsciiDoc file, it might instead be an Authentica Secure Office Protected Word Document file.

How To Open an ADOC File

Since AsciiDoc files are plain text files, any text editor can open one. My favorite is Notepad++, but others work too, like the Notepad application built-in to Windows.

Note: Since most text editors probably don't recognize files that have the .ADOC extension, you'll have to first open the text editor and then open the ADOC file through the program's open menu.

This is even easier if you're using Notepad++ because you can just right-click or tap-and-hold the ADOC file and then choose Edit with Notepad++.

Tip: ADOC files typically use special syntax like colons, periods, and brackets so that an AsciiDoc processor can display the plain text in a format that's easy to read.

You can learn more about this in Asciidoctor's AsciiDoc Syntax Quick Reference guide.

ADOC files that are Authentica Secure Office Protected Word Document files can be opened with the Signa Web web service.

Note: ADOC files don't have anything to do with DDOC files or Microsoft Word's DOC and DOCX formats, even though their file extensions are similar.

If you find that an application on your PC does try to open the ADOC file but it's the wrong application or if you would rather have another installed program open ADOC files, see my How To Change the Default Program for a Specific File Extension guide for making that change in Windows.

How To Convert an ADOC File

You can translate an AsciiDoc file into HTML, PDF, EPUB, and other formats using the Asciidoctor processor. See the How do I render a document? guide on the Asciidoctor website to learn how. However, before you can do that, you have to install Asciidoctor.

You can also render AsciiDoc files as HTML with the Asciidoctor.js Live Preview extension for the Chrome browser. After you follow the instructions for letting the extension have access to local files, you can just drag the .ADOC file right onto a Chrome tab to automatically render the ADOC as HTML and then display the file in the browser.

I'm not aware of any file converters that can convert an Authentica Secure Office Protected Word Document file to a different format.

More Help With ADOC Files

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what kinds of problems you're having with opening or using the ADOC file and I'll see what I can do to help.