PPTX to HEIF Converter
Initializing... drag & drop files here
Supports: PPTX
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
Reset to defaults
Need help?Convert PPTX to HEIF Online
Turn each slide of a PowerPoint (.pptx) deck into a HEIF still image. HEIF uses HEVC compression to store a slide at roughly half the size of a comparable JPEG at similar quality, which is useful if you are building a space-efficient slide library inside the Apple ecosystem (Photos, Keynote, iCloud). The trade-off is reach: HEIF will not open everywhere, so pick this format only when your viewers are on iPhone, iPad, or recent Mac — otherwise convert to JPG for the universal option or PNG for the sharpest text.
How to Convert PPTX to HEIF
- Upload Your PPTX File: Drag and drop your presentation onto the page or click "+ Add Files". Each slide is rendered into a separate image.
- Pick a Quality Preset: Open Advanced Options and choose a Quality Preset — the default is "Very High". Higher presets keep more detail at a larger file size; lower presets compress harder.
- Set DPI or Resolution (Optional): Raise the DPI (300 by default) for print-ready slides, or use Image Resolution to scale to a fixed width and height for the screen.
- Convert and Download: Click "Convert" and download your HEIF images. No sign-up, no watermark.
HEIF vs JPG vs PNG for Slide Images
| Property | HEIF | JPG | PNG |
|---|---|---|---|
| Compression | HEVC, lossy | DCT, lossy | Lossless |
| Typical size | Smallest (≈half of JPEG) | Small | Largest |
| Best for | Apple-ecosystem libraries | Sharing anywhere | Sharp text, line art |
| Native browser support | Safari 17+ only | Every browser | Every browser |
| Opens on Windows | Needs HEIF extension | Yes | Yes |
| Transparency | Yes | No | Yes |
Frequently Asked Questions
Where will my HEIF slides actually open?
On Apple devices since iOS 11 / macOS High Sierra (2017) they open natively in Photos, Files, Preview, and Keynote. In web browsers, only Safari 17 and later renders HEIF — Chrome, Firefox, and Edge do not. On Windows you must install Microsoft's HEIF Image Extensions before File Explorer and the Photos app can show them. If you need slides that open for everyone with no setup, use PPTX to JPG instead.
Is HEIF really smaller than JPEG for slide images?
Usually, yes. HEIF stores stills with HEVC compression, which is more efficient than JPEG's older DCT method, so a slide often lands around half the file size at similar visual quality. The gain is largest on photographic slides and gradients; on plain text slides the difference is smaller because there is little detail to compress. In our testing, a text-and-chart slide that exported as a 480 KB JPEG came out near 250 KB as HEIF at the same quality preset.
Does the converter export one HEIF per slide?
Yes. A PPTX deck is read slide by slide, and each slide is rendered to its own HEIF image at the resolution you set. A 20-slide deck produces 20 files, which we deliver together so you can download them in one step.
Will my fonts, animations, and transitions survive the conversion?
Layout, text, images, and most charts are rendered as they appear on the slide. Animations, slide transitions, embedded video, and audio are not preserved — a HEIF is a single still frame, so only the final on-screen state of each slide is captured. Fonts that are not embedded in the file may be substituted during rendering, which can shift spacing slightly; embedding fonts in PowerPoint before uploading keeps the result closest to the original.
What happens to my uploaded file after conversion?
Your PPTX is uploaded over an encrypted (TLS) connection, processed on our servers, and deleted automatically a few hours after conversion. There is no sign-up, no watermark, and your files are never shared or made public.