Convert CGM to POTM in Java & J2SE Applications

Convert Password Protected CGM to POTM

Accurately load and convert documents that are protected with a password within your Java based applications. The file format conversion API also supports rendering remote documents from different sources including S3, Blob, FTP, Stream, URL or a local disk.

Create new instance of Converter class and pass source document path
Instantiate the proper ConvertOptions class e.g. (PdfConvertOptions, WordProcessingConvertOptions, SpreadsheetConvertOptions etc.)
Call convert method of Converter class instance and pass filename for the converted document

Source Document Information Extraction

The documents information extraction feature not only allows getting the basic information about the source document file but it also supports extracting some valuable file-format specific information such as project start and end dates of a Microsoft Project file, any printing restrictions on a PDF document, list of folders enclosed in an Outlook data file etc.

Convert popular document file formats on different operating systems such as Windows, Linux or macOS while using development environments such as NetBeans, IntelliJ IDEA and Eclipse.

Convert Specific Word Pages to PDF in Java

Java document conversion API allows you to choose selected pages from the source document and accurately convert to the supported document format. The code example below shows how to convert the 1st and 4th pages of a Word document to the resultant PDF file.

Create a new instance of Converter class and load input (Word) document
Instantiate the proper ConvertOptions class e.g. (PdfConvertOptions, WordProcessingConvertOptions, SpreadsheetConvertOptions etc)
Set setPages property of the ConvertOptions instance and mention specific page number to be converted
Call convert method of Converter class instance and pass filename (PDF) for the converted document

Caching Converted Document Results

In some cases, the converted document size is bigger and it takes time to be converted. The document conversion library offers the caching feature to efficiently manage such situations and speed up the repetitive conversion process. Enable the ICache interface to work with custom cache implementation using the extension point and control the cache conversion, as you prefer.

The conversion result is saved to the local drive by default but any type of cache storage can be supported by implementing the appropriate interfaces such as Amazon S3, Dropbox, Google Drive, Windows Azure, Reddis or any other.

What is CGM file format?

CGM (Computer Graphics Metafile) is a vector-based graphics file format that was developed by the International Standards Organization (ISO) in 1982. It is used for storing and exchanging 2D vector graphics, text, and bitmaps. CGM files are widely used in many industries such as engineering, mechanics, architecture and 3D modeling. CGM files typically have the file extension .cgm or .cg and can be opened and edited with a number of software programs such as Adobe Illustrator and CorelDraw. CGM files are considered to be superior to other standard graphics formats such as JPG, GIF and BMP because they are more efficient, allowing for better image quality and smaller file sizes. Additionally, CGM files can be used across different computer platforms and operate properly on multiple operating systems such as Windows and Mac OS. Overall, CGM files are a reliable and efficient way of storing and exchanging vector graphics, text, and bitmaps. They are widely used all over the world, and can be found in many different industries.

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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.

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