Convert PPTX to JPG — Free Online Converter

PPTX is PowerPoint's XML-based presentation format that requires specific software to open. JPG is the world's most common image format, universally displayable without any special application. Converting PPTX to JPG renders each slide as a standalone compressed image, making presentation content accessible to anyone with a device that can display pictures — which is effectively every device in existence.

This conversion captures the exact visual appearance of each slide — backgrounds, text, shapes, images, charts, and SmartArt — and compresses it into a standard JPG file. The output is a numbered series of images, one per slide, suitable for sharing, embedding, printing, and archiving.

JPG images are the lowest-friction way to share visual content. Unlike PPTX files, which require PowerPoint or a compatible application, JPG images open instantly in any image viewer, browser, or messaging app. For quick sharing of specific slides — posting a key chart on Slack, texting a diagram to a colleague, or including a slide in an email body — JPG is simpler than attaching the full PPTX.

JPG slide images are also useful for web and mobile applications. Website builders, CMS platforms, social media schedulers, and mobile apps accept JPG but not PPTX. Converting slides to JPG makes the content available for web publishing, social media posting, and app integration without requiring PowerPoint file handling capabilities.

LibreOffice parses the PPTX ZIP structure, reading slide content XML, theme definitions, and slide master layouts. Each slide is rendered to bitmap using LibreOffice's Impress rendering engine, which processes text (with font rendering and antialiasing), vector shapes (with fills, gradients, and shadows), embedded images, and background themes. The bitmap is compressed as JPG using DCT compression at the specified quality level (default 85%). The output uses the standard JFIF format with YCbCr color space. Slide aspect ratio is preserved — 16:9 slides produce landscape images, 4:3 slides produce squarer images.