PPTX to BMP Converter

Convert PPTX to BMP Online

Turn each slide of a PowerPoint (.pptx) deck into a separate Windows Bitmap (.bmp) image — one BMP per slide, rendered at the resolution you choose. BMP is an uncompressed raster format, so reach for it when a piece of legacy Windows software or an embedded device specifically demands a .bmp; for everything else, PPTX to PNG gives you the same lossless quality in a far smaller file.

How to Convert PPTX to BMP

1. Upload Your PPTX File: Drag and drop your presentation onto the page or click "Add Files." Each slide becomes its own BMP image.
2. Set Conversion Quality (DPI): Higher DPI renders sharper text and graphics but produces larger files. 300 DPI is a solid balance for print-quality slides; drop to 96–150 DPI for screen use.
3. Pick Image Resolution (optional): Keep the original slide dimensions, choose a preset like 1080p, or set an exact width/height in pixels or percent.
4. Convert and Download: Click "Convert" and download your BMP images, or grab them all as a ZIP. No sign-up, no watermark.

BMP vs PNG for Slide Images

Both formats are lossless, so neither throws away image data — the difference is size and features. For slide exports, PNG matches BMP's quality at a fraction of the size, which is why it's the better default unless a tool specifically requires bitmap.

Frequently Asked Questions

Why would I convert PPTX to BMP instead of PNG?

Almost the only reason is compatibility: some older Windows applications, point-of-sale displays, and embedded systems read only the .bmp bitmap format. BMP stores raw, uncompressed pixels, so a single 1920×1080 24-bit slide lands around 6 MB. If nothing in your workflow demands BMP, use PPTX to PNG instead — it's lossless like BMP but typically 1–2 MB per slide.

Will the BMP images look exactly like my slides?

Each slide is rendered to a static image, so text, shapes, charts, and embedded pictures carry over faithfully at the DPI you select. Two caveats: animations, slide transitions, and GIF playback never render — you get the final visible state of each slide — and presentations that rely on non-embedded fonts may show a substituted font. In our testing, a standard 1920×1080 slide at 300 DPI produced a sharp BMP of roughly 6 MB, matching the raw 24-bit pixel count.

Do BMP files keep more quality than PNG or JPG?

No. BMP is lossless, but so is PNG — and PNG compresses the same pixels into a much smaller file. BMP's large size buys you nothing in quality terms. JPG, by contrast, is lossy and best for photo-heavy slides where a small quality trade-off is worth a smaller file; see PPTX to JPG for that. Choose BMP only for tooling that requires it.

Does BMP support transparent backgrounds?

Not reliably. The classic BMP format has no consistent alpha-channel support across applications, so slide backgrounds are flattened to a solid color. If you need transparency — for example, to overlay a slide graphic on another design — convert to PPTX to PNG, which has a full alpha channel.

Can I convert just one slide instead of the whole deck?

The converter renders every slide in the deck to its own BMP by default. To keep only specific slides, the simplest route is to delete the unwanted slides in PowerPoint first, or convert everything and keep the BMP files you want from the ZIP.

How are my files handled, and how long are they kept?

Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.