PPT to AVIF Converter

Convert PPT to AVIF: What This Tutorial Covers

.ppt is the legacy binary PowerPoint format — the one PowerPoint 97-2003 saved before .pptx (the XML-based OOXML format) became the default in PowerPoint 2007. This tutorial walks you through turning each slide of an old .ppt deck into its own AVIF image, an AV1-coded still that compresses far smaller than a comparable JPEG or PNG. That makes AVIF a good fit for archiving slides from a decades-old deck or embedding them on a web page, and the steps below cover the quality settings, what does and does not survive the conversion, and the cases where a different format serves you better.

How to Convert PPT to AVIF

1. Upload Your PPT File: Drag and drop your .ppt onto the page or click "+ Add Files". You can queue several presentations and convert them with the same settings; each slide is rendered to its own image.
2. Pick a Quality Preset: Open the options panel and choose a Quality Preset — the default is "Very High (Recommended)". Higher presets keep more detail at a larger file size; lower presets compress harder for smaller files.
3. Set the Image Resolution (Optional): Leave Image resolution on "Keep original" for full-size slides, choose a Preset Resolution like 1080p to scale for the screen, or set an exact Width x Height in pixels.
4. Convert and Download: Click "Convert" and download your AVIF images. No sign-up, no watermark.

Walk-through: Getting the Quality Right for an Old Deck

Old .ppt files were usually built for 4:3 screens at low resolution, so the right settings depend on what you are doing with the output:

• Archiving the slides for the record: Keep the Quality Preset at "Very High" and Image resolution on "Keep original" so you capture every slide exactly as it renders, then store the AVIF files alongside the original deck.
• Embedding slides on a web page: AVIF already compresses hard, so "Very High" plus a Preset Resolution of 1080p (or smaller) keeps the images sharp while staying lightweight for fast page loads.
• Squeezing the smallest possible files: Drop the Quality Preset to "High" or "Medium" and scale the resolution down — text stays readable far longer in AVIF than in JPEG at the same byte size, because AV1 compression handles flat color and sharp edges well.

Because AVIF is the AV1 still-image format (AOMedia published the AVIF specification on February 19, 2019), the encoder spends real CPU finding an efficient representation. That happens on our servers, not your device, so a large multi-slide deck does not bog down your browser — the practical limit is upload size and time, not your computer's memory.

Common Errors and How to Fix Them

• "The fonts look different from my original": If a slide uses a typeface that was not embedded in the .ppt, the renderer substitutes the closest available font, which can shift spacing or line breaks. Embed the fonts in PowerPoint (File > Options > Save > "Embed fonts in the file") and re-save before uploading to keep the result closest to the original.
• "My animations and transitions are gone": They cannot survive — an AVIF is a single frozen frame. Entrance animations, slide transitions, timed builds, and any embedded audio or video are dropped, and you get the final on-screen state of each slide as a picture. Keep the original .ppt if you need it to stay playable.
• "My AVIF won't open on an older computer": AVIF needs a recent viewer. Windows 11 (version 22H2 and later) and macOS Ventura (13) and later open it natively; on older systems, view it in Chrome or Firefox, or convert the slides to JPG instead.
• "A very old slide looks slightly off": Decks from the 97-2003 era sometimes contain legacy objects (old WordArt, embedded OLE charts, or proprietary clip art) that a modern renderer interprets approximately. The layout and text come through, but expect occasional small differences on the oldest files.

When This Doesn't Work

If your file is actually a .pptx rather than a true legacy .ppt, use the PPTX to AVIF converter instead — modern decks are read more faithfully through the OOXML path. If you need the whole presentation as one shareable, printable file rather than separate images, convert PPT to PDF, which keeps the slide layout in a single document. And if the original .ppt is corrupt or password-protected, no online renderer can open it — repair or unlock it in PowerPoint first, then convert.

Frequently Asked Questions

Does the converter export one AVIF per slide?

Yes. The deck is read slide by slide and each slide is rendered to its own AVIF image, so a 15-slide presentation produces 15 images. When a conversion yields more than one file, we package the images together so you can download them in a single step rather than one at a time.

Will my old PPT lose quality compared to a newer PPTX?

The conversion itself does not penalize a legacy file — each slide is rendered at the resolution you choose regardless of whether it started as .ppt or .pptx. The difference is fidelity of interpretation: very old .ppt decks can contain legacy objects that a modern renderer reproduces approximately. Layout and text come through reliably; the rare visual quirks come from the age of the file, not from AVIF.

Where will my AVIF slide images actually open?

In browsers, AVIF is supported for roughly 93% of users — Chrome 85+, Firefox 93+, Edge 121+, and Safari 16.4+ all render it, per current caniuse data. On the desktop, Windows 11 (22H2+) and macOS Ventura and later open AVIF natively; on older systems you may need an AVIF-capable viewer. If you need images that open everywhere with zero setup, convert PPT to JPG for the universal option instead.

Why pick AVIF over JPG for slides from an old deck?

File size at a given quality. AVIF uses AV1 compression, which is markedly more efficient than JPEG's older method, so a slide usually lands much smaller at similar visual quality — useful when you are embedding many slide images on a page where bandwidth matters. In our testing, a chart-and-text slide that exported near 470 KB as a JPEG came out around 180 KB as AVIF at the same quality preset. The trade-off is reach: JPG opens on literally everything, while AVIF still leaves out users on older browsers and operating systems.

What happens to my uploaded file after conversion?

Your .ppt is uploaded over an encrypted (TLS) connection, processed on our servers, and deleted automatically a few hours after conversion. No account is required, the output carries no watermark, and your files are never shared or made public.