Convert PPT to APNG Online

Convert PPT to APNG: What You Actually Get

.ppt is the legacy binary PowerPoint format that PowerPoint 97–2003 saved before the XML-based .pptx took over in 2007. Converting one here renders every slide to its own full-resolution image and writes each as a .apng file. Read that carefully, because it is the thing people get wrong about this conversion: you get one still per slide, not one animation of the whole deck. APNG's animation chunks are only assembled on the GIF path, so a presentation converted to APNG produces a set of ordinary, static PNG streams that happen to carry the .apng extension. If a looping animation of your deck is what you came for, PPT to GIF is the conversion that actually does it.

How to Convert PPT to APNG

1. Upload Your PPT File: Drag the .ppt onto the page or click "Add Files". The deck is read slide by slide; a 15-slide presentation will produce 15 output images.
2. Set the Image Resolution: Image resolution starts on Keep original, which gives you the full render (see the table below for what that means in pixels). Choose Resolution Percentage to scale proportionally, a Preset Resolution to fix the height, or Width x Height for exact dimensions. This is the only control on the page that changes the output meaningfully.
3. Ignore the Framerate and Combine Controls: Video Framerate and Combine? both render on this page, but nothing downstream consumes them for a presentation source — no frame assembly happens, so neither setting changes your result.
4. Convert and Download: Click Convert. Because a multi-slide deck produces multiple files, they arrive individually with a "Download All (Zip)" button alongside them. 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.

Walk-through: Why the Output Doesn't Animate

The conversion is a three-stage pipeline. Your .ppt is first laid out and exported to PDF, preserving one PDF page per slide. That PDF is then rendered page by page to lossless PNG images. Finally each PNG is written out in your chosen target format. Only one target — GIF — has a fourth stage that collects those PNGs and assembles them into frames of a single animated file. APNG does not go through that stage; each PNG is converted individually, so each output is a single-frame image.

A single-frame APNG is, by definition, just a PNG. The animation is carried by three chunks defined in the W3C PNG Third Edition Recommendation of 24 June 2025 — acTL for animation control, fcTL per frame and fdAT for frame data — and a one-frame file contains none of them. That is why the result opens fine everywhere and simply sits there. It is not corrupt; there is nothing to play.

• If you want the deck as a loop: use PPT to GIF, which is the only path with the frame-assembly stage.
• If you want one crisp image per slide: you are already on the right kind of tool, though PPT to PNG writes the same pixels under an extension every application recognises.
• If you want the deck as one document: PPT to PDF keeps the layout and the page order in a single file.

What the Renderer Does With Your Deck

APNG vs GIF for a PowerPoint Deck

Common Errors and How to Fix Them

• "My APNG doesn't animate" — Expected. A presentation source never reaches the frame-assembly stage, so each slide becomes its own single-frame file. Use PPT to GIF for a loop.
• "I got a folder of files instead of one image" — That is the design: one image per slide. When a job produces more than one file you get them listed individually with a "Download All (Zip)" button. A single-slide deck produces a single file.
• "Changing the Framerate did nothing" — The control renders on this page but is not read for a presentation source, because there is no animation to time. The same is true of Combine?.
• "The fonts look different from my original" — If a typeface was not embedded in the .ppt, the layout engine substitutes the nearest available font, which can shift spacing and line breaks. Re-save from PowerPoint with File > Options > Save > "Embed fonts in the file" before uploading.
• "My animations, transitions and embedded video are gone" — They cannot survive a still image. What you get is the final on-screen state of each slide. Export the slideshow to video from PowerPoint first if the motion matters.
• "The image is enormous" — At the fixed 300 DPI render, a widescreen slide is around 4000 px wide. Set a Preset Resolution or a Resolution Percentage to bring it down.

When This Doesn't Work

If the file is actually a modern .pptx rather than a true legacy .ppt, use PPTX to APNG, which reads the OOXML structure directly and reproduces recent decks more faithfully. If the deck is password-protected or damaged, no server-side renderer can open it — repair or unlock it in PowerPoint first. And if what you really need is a moving asset for a README, a docs page or a chat message, stop here: convert to GIF for the loop, or export the slideshow to video from PowerPoint and convert that, because a single still per slide is not going to do the job however you package it.

Frequently Asked Questions

Will the whole deck become one animated APNG?

No. Every slide is rendered to its own image and written as its own .apng file, so a 12-slide deck produces 12 files. The stage that collects rendered slides and assembles them into animation frames only exists on the GIF target, so nothing on the APNG path ever builds the acTL and fcTL chunks an animated PNG needs. Each output is a valid single-frame PNG stream under an .apng name. For an animated result from a deck, use PPT to GIF.

What resolution will my slides come out at?

At 300 DPI, applied to the physical slide size in your deck. A classic 4:3 PowerPoint slide is 10 x 7.5 inches, so it lands near 3000 x 2250 px; the modern 16:9 default of 13.333 x 7.5 inches lands near 4000 x 2250 px. Decks with a custom page size scale accordingly. The render-quality control that would let you pick a different DPI is not displayed on presentation sources, so if you want smaller images, use the Image resolution control to scale the rendered result down instead.

Does anything lossy happen between the slide and the file?

No. The deck goes to PDF, the PDF is rendered to lossless PNG, and the PNG is written out as APNG — every stage is lossless, and there is no JPEG intermediate anywhere on this route. What you lose is not fidelity but behaviour: animations, transitions, timings, speaker notes, embedded audio and video, and the ability to edit the text.

Why is the background of some slides transparent?

Because the renderer keeps an alpha channel and, on this route, does not flatten the page onto a solid colour. A slide whose background is explicitly filled — a theme colour, a gradient, a picture — renders with that fill exactly as you see it. A slide with the background set to none has nothing drawn behind its content, so those areas stay transparent, and APNG preserves that alpha faithfully. If you need a guaranteed opaque result, set an explicit background fill on the slide master before exporting.

Should I use APNG or PNG for slide images?

For a single still there is no difference in the pixels; the choice is about what opens the file without friction. A one-frame APNG is byte-compatible with PNG, so browsers and modern viewers handle it, but plenty of desktop applications, CMS uploaders and image libraries filter on the extension and will simply refuse .apng. PPT to PNG sidesteps all of that with the same output quality. Pick APNG only if something downstream specifically expects that extension.

What happened to my animations, transitions and embedded media?

They are dropped, and they have to be. A still image records the rendered visual state of a slide — the final position of every object after all builds have run. Entrance and exit animations, slide transitions, motion paths, timed builds, embedded video and any audio have no representation in a static picture. If preserving motion within a slide matters, export the presentation to video from PowerPoint and convert that video instead; if only the slide order matters, GIF will at least advance through them.

Can I convert several decks at once?

Yes — queue multiple .ppt files and they are processed with the same settings. Be aware of how the output multiplies: three decks of ten slides each is thirty images, all delivered as a multi-file result with a "Download All (Zip)" button. If you are batching, it is worth setting a Resolution Percentage first, because thirty full-size 300 DPI renders is a lot of megabytes to download for no benefit.

How are my uploaded presentations handled?

Your .ppt is uploaded over an encrypted connection and rendered entirely on our servers — decks need a real layout engine and font substitution to render correctly, which is why this is not something a web page can do on its own. Both the uploaded deck and the generated images are deleted automatically after a few hours. No account is required, nothing is watermarked, and your files are never shared or made public.