Convert DGN to POTM via Java

What is DGN file format?

A DGN (Design) file is a vector graphics file created by Bentley Systems Incorporated, a computer software company. It contains elements such as points, lines, curves, and text as well as object-oriented graphics which are used to represent geometric shapes. A DGN file is typically used in the engineering and architectural industry. The DGN format is based on the Intergraph Standard Vector (ISV) format, which allows the user to transfer data between different CAD systems. Bentley Systems Incorporated has several programs that use the DGN file extension. Examples include MicroStation, Architectural Desktop, and StormCAD.

The DGN format is a powerful and efficient way to store complex graphics data. It is highly compressed, making it ideal for large-scale projects that require lots of data. It is also easy to share, as many different CAD programs can open and edit this file type.

The DGN file format can be used for a variety of purposes, such as creating detailed drawings for engineering or architectural projects, or for 3D modeling. It provides a way to accurately and efficiently store and share data between CAD programs.

What is POTM file format?

A POTM file refers to a macro-enabled presentation template created using Microsoft PowerPoint, a software program used for creating slide show presentations. It includes default images, slide templates, macros, and formatting. POTM files are commonly used by PowerPoint users to create multiple .PPTM files with consistent designs and macro settings.

POTM files offer additional functionality compared to typical presentation files, as they support macros. Macros are script-like functions that automate repetitive tasks within PowerPoint. Users can record macros that can be replayed to perform specific actions and assign them to buttons or keystrokes for convenient execution. To record a macro, users can select View → Macros in PowerPoint.

For general presentation creation, users can save their files as .PPTX or .POTX files. However, if they want to create a template that incorporates macros, they can save their presentation as a POTM file.

It’s worth noting that POTM files were introduced by Microsoft when they released Microsoft Office 2007.

To open a POTM file, Microsoft PowerPoint (2007 or later) is the recommended application for full support of presentation formatting and embedded macros on both Windows and macOS. Alternative applications like Apache OpenOffice Impress, Kingsoft Presentation, and Apple Keynote can also open POTM files, but some formatting and macros may not be fully preserved. For Mac users looking to view a POTM file without editing, Apple Preview (bundled with macOS) or Google Drive, a free cloud storage service, can be used.

Online platforms like Google Slides allow users to upload POTM files for viewing, editing, and conversion. However, it’s important to note that Google Slides does not support macros.

To convert a POTM file, various presentation applications including Microsoft PowerPoint, Apple Keynote, and OpenOffice Impress offer conversion capabilities. In Microsoft PowerPoint for Windows and Mac, users can select File → Save As and choose from formats such as .PPTX, .PPT, .PDF, .ODP, .XPS, .MP4, .WMV, .JPEG, and .PNG to convert the POTM file to their desired format.