Free online PPTM to PNG converter

Presentation slides are often converted to PNG when a website, document, or image viewer needs static pictures instead of an editable PowerPoint file. PNG files are also convenient for sharing individual slides without requiring presentation software.

What the PPTM format is

.pptm is the macro-enabled presentation format used by Microsoft PowerPoint. It stores slides and can include VBA macros; PowerPoint creates it when a presentation is saved in macro-enabled format. LibreOffice Impress can also open PPTM files.

What the PNG format is

PNG is a raster image format suited to slide graphics, diagrams, and text with sharp edges. It supports lossless compression and transparency, and is widely viewable in browsers and image-editing software. Unlike a presentation, each PNG is a static image: it does not retain editable slide objects, animations, or clickable controls.

How to convert PPTM to PNG

Online on 101convert.com

1. Choose the PPTM file and upload it to the converter.
2. Before converting, set any needed options: pages, resolution, image size, max width, max height, and auto orient. Several files can be converted in one batch; the per-file size limit is shown on the page.
3. Start the conversion, then download the PNG files.

The conversion runs on the service’s server with LibreOffice, then ImageMagick.

Offline with desktop software

LibreOffice Impress is free and runs on Windows, macOS, and Linux. Open the PPTM file in Impress, then choose File → Export, select PNG as the file type, and export the slide. For a multi-slide deck, export to PDF first with File → Export As → Export as PDF, then render the PDF pages with ImageMagick:

magick -density 150 input.pdf slide-%03d.png

Install ImageMagick with PDF-reading support; some installations also require Ghostscript. The density value controls rasterization resolution, and the output names are numbered by page.

Microsoft PowerPoint can export slides directly on Windows and macOS. Open the presentation, choose File → Save As, select PNG, and save. When prompted, choose all slides or only the current slide.

Quality and limitations

PNG dimensions determine how sharply a slide appears at a given display or print size. Increase the export resolution or image size for larger output; smaller dimensions reduce file size but can make fine text harder to read. The rendered image reflects the slide’s appearance, not its editable objects, VBA macros, animation, or presentation behavior; fonts and unsupported effects may also render differently if they are unavailable in the conversion software.