Which MIME types are related to file extension ".pmt"?

The .pmt file extension is associated with 2 MIME types:

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

About .pmt Files

PMT files are files with two potential uses.
Based on information from FilExt.com, they may be either PageMaker documents or AutoPrompt scripts.

PageMaker PC Document:
They use the MIME type application/vnd.pagemaker.
They were created by Adobe PageMaker versions 6.5–7.0.
They store page layouts with text, images, and design elements.
They are typically opened or edited in Adobe PageMaker or similar desktop publishing software.
AutoPrompt Script:
They use the MIME type text/plain.
They contain plain text commands for auto prompt features.
They can be opened with any simple text editor.

PMT files are used differently based on how they were created. Check the file’s content and source to decide the appropriate software for opening or editing it.

Relationship between file extension and MIME type

A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.

File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.

File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.

Associated MIME types

application/vnd.pagemaker, text/plain

FAQs

What is a .pmt file?

A .pmt file is primarily associated with Adobe PageMaker (versions 6.5–7.0) as a template or document containing page layouts, text, and images. Alternatively, it may be an AutoPrompt Script containing plain text commands. You must identify the file's origin to determine which program to use.

How do I open a PageMaker .pmt file on a modern computer?

Since Adobe PageMaker is discontinued, the best way to open these files is using Adobe InDesign. However, modern versions of InDesign (CC) may not support direct import; you might need to use an older version like InDesign CS6 to convert the file to a standard .indd format first.

Can I edit a .pmt file using Notepad?

Yes, but only if the file is an AutoPrompt Script. These are plain text files that can be edited with Notepad, TextEdit, or any source code editor. If you try to open a PageMaker binary file in a text editor, you will see unreadable characters and symbols.

How can I convert a .pmt file to PDF?

To convert a PageMaker .pmt file to PDF, you should import it into Adobe InDesign and use the Export feature to save it as a PDF. If you have access to the original PageMaker software, you can print the file to a virtual PDF printer like Adobe Acrobat Distiller.

What is the correct MIME type for .pmt files?

For PageMaker documents, the specific media type is application/vnd.pagemaker. If the file is a text script, it utilizes the standard text/plain type. For a comprehensive list of types, visit mime-type.com.

Why can't I open my .pmt file in Adobe InDesign?

Adobe removed support for opening legacy PageMaker files in recent Creative Cloud updates. If you receive an error, try opening the file in InDesign CS6 or older to convert it. Additionally, ensure the file is not corrupted or actually a text-based script.

How do I distinguish between a PageMaker file and a script?

Right-click the file and open it with a simple text editor. If the content is readable text with command structures, it is a script (MIME type text/plain). If the content appears as random "gibberish" or binary code, it is likely a PageMaker document.

General FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why can one extension have multiple MIME types?

Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.