What Is a PDI File?

How to open, edit, and convert PDI files

What to Know

  • A PDI file might be an InstantCopy Disc Image file.
  • Open one with ImgBurn or IsoBuster.
  • Convert to ISO using ISOBuddy.

This article explains the possible formats your PDI file might be in, including how to open each type and how to convert the file to a format that might be more relevant for whatever you're using it for.

What Is a PDI File?

A file with the PDI file extension is most likely an InstantCopy Disc Image file, which is an exact copy of a disc created using Pinnacle Systems' InstantCopy DVD ripper program.

Screenshot of several PDI files in Windows 10 that open with ImgBurn
PDI Files.

Your PDI file might instead be associated with PReS Document Creation Subroutines, or it may be a disk image file used with PI software from OSIsoft as a Display Definition file.

Some versions of Microsoft PowerPoint use this file extension for a format that supports importing and exporting PowerPoint files, while other PDI files stand for Portable Database Image, a format used for publishing and analyzing data.

PDI is also an acronym for a number of technical terms but none of them are related to a file format. For example, program and debug interface, path defect indicator, product data index, professional digital imaging, and professional development - IP committee.

How to Open a PDI File

Although it's discontinued, InstantCopy from Pinnacle Systems was the primary program used for both creating and opening files that are in the InstantCopy Disc Image file format.

ImgBurn is a free alternative that also opens these files, but only for the purpose of burning it to a disc—it does not support ripping (copying) discs to the PDI format as InstantCopy did. IsoBuster might be able to open PDI files similarly.

PReS Document Creation Subroutines are associated with Objectif Lune (previously called PrintSoft), but we're not sure if or how the file comes into play there. It's not clear what specific program the file is used with.

PI software from OSIsoft is what's used to open PDI files that are Display Definition files.

PDI files that PowerPoint uses can, of course, be opened with that program.

Microsoft Excel and software from Panoratio are two options for opening Portable Database Image files.

If even after those suggestions, you still can't open the file, try using a text editor like Notepad++. It's possible the file is just text, in which case the text editor can open and display the contents. However, if it's not a text file, your file may have some sort of readable text within it that explains what type of program was used to create it...and likely open it as well.

If you find that an application on your computer does try to open the file but it's the wrong one, or you'd rather have another installed program be responsible for that job, see our How to Change the Default Program for a Specific File Extension guide for instructions on making that change.

How to Convert a PDI File

A dedicated file conversion tool is usually enough to convert most file types, but that's probably only true for PDI files when it comes to the InstantCopy Disc Image format.

You can use ISOBuddy to convert those kinds of PDI files to the ISO format. The ImgBurn program might work too, and if so, probably supports additional export formats like BIN, IMG, and MINISO.

We have little confidence that any of the other PDI formats described above can be converted to a new format. However, if it's possible, just open the PDI file in whatever software it's openable in and look for some sort of File > Save As or Export menu.

Still Can't Open It?

If you can't get the file to open or convert using one of the programs linked above, double-check that you're reading the file extension correction. Make sure it reads ".PDI" and not something similar like PDF, IDX, PDD, or PDL (Perl Data Language).

All four file formats require different programs to open them, even though they look very similar in the way they're named.

If you find that you're not really dealing with a PDI file, research the file extension that you do have. Unless it's an extremely obscure format, you'll likely find out which software programs support it and how, if it's possible, to convert your file to some other format.

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