PFM は浮動小数点ピクセルをそのまま格納する極めて単純な形式です。深度マップや視差データなど、画素値そのものを保ちたい場面で使われます。
Typical use: 数値データを保つなら PFM、目で見るなら PNG に変換します。
About the PFM format
PFM は浮動小数点の画素値をそのまま並べる形式です。深度マップや視差データなど、数値そのものを保ちたい場面で使われます。
8 バイトのヘッダーだけという単純さが利点です。目で見るには PNG への変換が必要です。
Strengths
- ✓ 数値を劣化なく保持
- ✓ 構造が極めて単純
- ✓ Widely read by research tooling
Limitations
- ✗ ビューアで直接見えない
- ✗ 対応ソフトが少ない
- Compression
- None (raw floats)
- Transparency
- Not supported
- Animation
- Not supported
- Metadata
- Minimal header only
- Best for
- HDR interchange, render passes
Convert PFM to…
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Frequently asked questions
What is a PFM file?
PFM (Portable Float Map) stores pixels as raw 32-bit floats — the lossless hand-off format for HDR pipelines, radiance research and render passes, riding the same family spirit as PBM/PGM/PPM.
How do I convert PFM files online?
Pick a target format from the "Convert PFM to…" list below, drop your file and hit convert. Everything runs in your browser — no install, no upload, no watermark, no limits.
Is it safe to convert PFM files here?
Yes. Every conversion is performed by your own device inside the browser — files never leave for a server, and the page keeps working even offline.
Which formats can PFM convert to?
This page lists all 69 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.