PPT to AVIF Converter

Convert PPT to AVIF

.ppt is the binary PowerPoint format that Microsoft still publishes a specification for, and AVIF is the AV1-based still-image format that compresses harder than anything else with broad browser support. This converter renders every slide of a legacy deck to its own AVIF image — one file per slide — which is the right shape for archiving a 2003-era presentation as pictures, or for embedding slides on a page without shipping a 500 KB screenshot per slide. The two formats are about twenty years apart, and knowing what each one actually is explains most of what does and does not survive the trip.

PPT (Binary PowerPoint) at a Glance

AVIF at a Glance

How to Convert PPT to AVIF

1. Upload Your PPT File: Drop the .ppt on the page or click "Add Files". Every slide is rendered separately, so a 20-slide deck produces 20 AVIF images. Several decks can be queued and converted with the same settings.
2. Set the Quality Preset: Quality Preset runs from Highest down to Lowest and starts on "Very High (Recommended)". The chosen preset becomes the quality factor handed to the AVIF encoder, so this control genuinely moves both fidelity and file size — unlike several others on this page.
3. Set the Image Resolution or a Specific File Size: Image resolution starts on Keep original; use Resolution Percentage, a Preset Resolution or an explicit Width x Height to scale the render down. Alternatively switch to Specific file size, type a byte target, and use the Auto Scale toggle to let the converter reduce dimensions if quality alone cannot reach it.
4. Convert and Download: Click Convert. A multi-slide deck arrives as a set of files with a "Download All (Zip)" button. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours — no sign-up, no watermark, never shared.

What the Conversion Pipeline Actually Does

The deck is laid out and exported to PDF first, one PDF page per slide. Each page is then rendered to a lossless PNG at 300 DPI, and each PNG is encoded to AVIF with the quality factor your preset chose. We traced this end to end because it matters for fidelity: the intermediate on this route is PNG, not JPEG, so nothing is degraded between the render and the AVIF encode — the only lossy step is the one you control.

• Render resolution is fixed at 300 DPI here. The render-quality control that would let you pick a different DPI is not displayed on presentation sources, so a 4:3 slide arrives at the encoder near 3000 x 2250 px and a 16:9 slide near 4000 x 2250 px. To get smaller images, scale with Image resolution rather than looking for a DPI setting.
• Alpha is preserved rather than flattened. The page render keeps its alpha channel and is not composited onto a solid colour on this route, and AVIF carries alpha natively. A slide with an explicit background fill renders exactly as it looks; a slide with the background set to none comes through transparent.
• The AVIF-specific tuning controls are not shown, because they belong to other formats. Lossless mode is a WebP-only control here, and compression level and speed are PNG-only. Their absence on this page is correct, not a gap — the Quality Preset is the encoder dial for AVIF.
• The Frame Selection group is not read on a presentation source. It renders on this page, but nothing in the presentation-to-image path consumes a frame time or a capture rate — that group exists for video sources. Setting it will not change your output.

Frequently Asked Questions

Does the converter produce one AVIF per slide?

Yes. The deck is rendered slide by slide and each slide becomes its own AVIF, so a 15-slide presentation yields 15 images in slide order. Once a job produces more than one file, the results are listed individually with a "Download All (Zip)" button so you can take the whole set in one step. There is no option to combine the slides into a single image — for a one-file version of the whole deck, PPT to PDF keeps the layout and the page order together.

Is the AVIF spec still being developed, or is this a frozen format?

Actively developed. The AV1 Image File Format specification reached v1.2.0 as an AOMedia Final Deliverable on 16 October 2025, and it builds on HEIF and the ISO base media file format rather than defining a container from scratch. That layering is why AVIF files are structurally close relatives of HEIC files even though their payload codecs differ. On the source side, .ppt is equally alive as a documented format — Microsoft's [MS-PPT] specification was last revised in November 2024, which is why a two-decade-old deck can still be laid out accurately today.

Why is AVIF a good fit for slide images specifically?

Because slides are the content AV1 handles best. A typical slide is large flat areas of colour, hard-edged type and a few vector shapes — exactly the material that older DCT-based compressors struggle with, since they ring around sharp edges and waste bits on smooth regions. AV1's larger prediction blocks and better intra modes handle both cases well, so slide text stays legible at byte sizes where a JPEG of the same slide would be visibly fuzzy around the letterforms. The trade-off is reach rather than quality, and it is closing: AVIF now covers around 95% of tracked browser usage.

Will a legacy .ppt lose fidelity compared to a modern .pptx?

The image quality is identical — each slide is rendered at the same resolution and encoded the same way regardless of which format it came from. What differs is interpretation. Decks from the 97–2003 era can contain legacy constructs, particularly old WordArt, OLE-embedded charts and period clip art, that a modern layout engine reproduces approximately rather than exactly. Text, positioning and colour come through reliably; the occasional visual quirk is a function of the file's age, not of AVIF. If your file is actually a .pptx, use PPTX to AVIF, which reads the OOXML structure directly.

Why do the fonts look different from my original deck?

Because the typeface was not embedded in the file. A .ppt stores font names by default rather than the fonts themselves, so a renderer that does not have that exact face substitutes the nearest match — which changes glyph widths and can reflow a line or push text out of its box. The fix is at the source: in PowerPoint, File > Options > Save > "Embed fonts in the file", then re-save and upload the new copy. Decks that stick to widely available faces rarely show the problem at all.

What happened to my animations, transitions and embedded video?

They cannot survive. An AVIF is a single frozen frame, so what you get is the final on-screen state of each slide with every build already applied. Entrance and exit animations, motion paths, timed builds, slide transitions, embedded audio and embedded video are all dropped, along with speaker notes and any interactivity. Keep the original .ppt if you need it to remain playable; convert to images when what you want is a durable, viewable record of what each slide looked like.

Where will my AVIF slide images open?

In every current browser and in recent desktop operating systems. Per caniuse, support covers Chrome from version 85, Firefox from 93, Edge from 121 and Safari from 16.4, adding up to roughly 95% of tracked usage. Outside the browser the picture is patchier: recent Windows and macOS releases preview AVIF natively, but older systems and plenty of specialist image tools still do not. If the images have to open on anything, anywhere, with no setup at all, PPT to JPG is the universal choice — at a noticeably larger file for the same visual quality.

How can I get the smallest possible files from a long deck?

Attack pixel count before quality. A 300 DPI render of a widescreen slide is around nine megapixels, which is far more than any screen use needs, so setting a Preset Resolution of 1080p or a Resolution Percentage around 40–50% typically removes most of the weight with no visible loss. After that, step the Quality Preset down one or two notches and check the slide with the most text — type degrades before photographs do. The Specific file size control with Auto Scale enabled does both automatically if you would rather name a byte target and let the converter find its way there.