1. PDE File Extension
2. What is a(n) PDE file?
3. How to open PDE file?

3.1 Check the PDE file for errors
3.2 How to solve encountered problems?
1. 3.2.1 Programs that can open PDE files

4. Similar file extensions

PDE File Extension

File type Processing Development Environment Source Code Format
File developer Processing
File category Developer Files
File popularity rating

What is a(n) PDE file?

The PDE (Processing Development Environment Source Code Format) is the file extension for source files written in the Java-based Processing programming language. It contains code written in the Processing dialect of the Java language, as well as program instructions. The content of the file may include drawings, animation, and user-interactivity. When users open a PDE file, it is typically opened with the Processing IDE (Integrated Development Environment), which is used to create, debug, and export apps written in the Processing language.

PDE files can also be opened using IDEs such as Sublime Text, Atom, and Visual Studio Code that support programming in the Processing language. Furthermore, PDE files can be opened by some web browsers and text editors so users can view their source code contents without needing to export them to a standalone app.

How to open PDE file?

PDE file icon should be displayed in a manner characteristic to the program which supports such file type. If PDE file icon is of the form of generic blank page icon or similar it means that given format is not associated with any program installed on the system. Below are listed some of the most popular causes of such situation

Check the PDE file for errors

No program that supports PDE files is installed on the system
No program that supports PDE files is associated with this extension (system registry has no entries related to programs that should be used to open PDE files)
The file is of unknown or unverified origin and is most probably infected. In such case user must exercise extreme caution in order not to allow the virus propagate to other files in the system (follow the instructions displayed in the dialog box in your antivirus software.
PDE file may be incomplete, which will prevent the system from opening it (this could be the case with file downloaded from the internet or copied from other sources)
The file is corrupted

How to solve encountered problems?

In order to solve the following problems, follow the instructions:

Step 1. Select, download and install relevant software. The list of programs supporting files with PDE extension can be found below:

Programs that can open PDE files

Windows

Processing

MAC OS

Processing

Linux

Processing

Step 2. Associate software supporting PDE with this file format

Right-click on the PDE file
Select "Open with" option
Choose appropriate program from the list and select the location where the program is installed
Confirm your selection by clicking on the "OK" button

Step 3. Scan the PDE file using an antivirus software

Step 4. Verify whether the file has been properly downloaded from the internet or copied from an external storage medium. If not, then re-download or copy the file again.

In 95% of cases following these steps should solve problems with PDE files. Sometimes, although rarely, the cause of encountered problems may be different.

Last resort – an IT expert

Should all the above-mentioned solutions fail to resolve problems with PDE file extensions, there is one last thing you can do – contact an IT expert. You can also try to contact one of the developers of software that supports PDE files.

Similar file extensions

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Open files with PDE extension quick and easy. 4 steps