Adobe Acrobat Reader HTML data
File type: Various data file
An html- file contains HTML data used by Adobe Acrobat Reader.
File type category:
Various data file
Date updated: October 16, 2026
The html- file extension is associated with Adobe Acrobat Reader, Adobe's PDF-reading software for Microsoft Windows and Apple macOS.
An html- file stores HTML data used by Reader. It belongs to the software's supporting data rather than to a PDF document, and its contents may not be intended for direct editing.
Adobe Acrobat Reader normally manages these files itself, so users generally do not need to create, edit, or exchange them independently.
Open an html- file with Adobe Acrobat Reader on Microsoft Windows or Apple macOS if the file came from that application. Reader may use the file internally and may not provide a way to open it directly.
Do not rename the file to .html unless its source confirms that it is a standalone HTML document. A web browser may not correctly interpret Adobe Reader data stored in this format.
There is no standard conversion workflow for an html- file. It is supporting data for Adobe Acrobat Reader, not a user document format with a defined export option.
Software applications that handle other tasks involving html- files:
Microsoft Windows
Apple macOS / Mac OS X
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