PPSM to PNG Converter

The PPSM (PowerPoint Macro-Enabled Slide Show) file format is a presentation file type developed by Microsoft, based on the Office Open XML (OOXML) standard defined in ISO/IEC 29500. Unlike standard PPTM files, PPSM files are configured to open directly in slide show mode rather than edit mode. The structure utilizes a ZIP-compressed XML framework containing a vbaProject.bin binary part to store Visual Basic for Applications (VBA) macros, along with separate folders for slides, media assets, and relationship (.rels) files.

PPSM files are natively supported by Microsoft PowerPoint (2007 and later) on Windows and macOS, which executes the contained macros upon opening if security settings permit. For users without the full Microsoft Office suite, files can be viewed using the free PowerPoint Viewer or LibreOffice Impress. On mobile devices, the Microsoft PowerPoint app provides compatibility, though macro execution is generally restricted on iOS and Android platforms.

Portable Network Graphics (PNG) is a raster graphics file format that supports lossless data compression, created as a patent-free replacement for the Graphics Interchange Format (GIF). Standardized as ISO/IEC 15948:2004, PNG utilizes the DEFLATE compression algorithm (a combination of LZ77 and Huffman coding) and supports palette-based images, grayscale, and full-color non-palette-based RGB/RGBA images. A defining feature is its alpha channel support, allowing for variable transparency levels, unlike the binary transparency of GIF. It does not support animation but offers gamma correction and interlacing via the Adam7 algorithm.

PNG files possess near-universal compatibility across all major operating systems (Windows, macOS, Linux, Android, iOS) and web browsers (Chrome, Firefox, Safari) without requiring additional software. Default image viewers such as Microsoft Photos, Apple Preview, and virtually all graphics editing software including GIMP, Adobe Photoshop, and Paint.NET natively handle the format.