PFM to PNG Converter

Transform PFM into PNG images quickly online

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Nothing to Install

The converter lives in your browser — just navigate, upload PFM, select PNG, and grab the result. No desktop app needed.

Quick Turnaround

Get your PNG output within seconds of uploading PFM data. Cloud processing keeps conversions fast even for larger inputs.

Any Device

Convert PFM to PNG from a desktop, laptop, tablet, or phone. The browser-based tool adapts to any screen and operating system.

How to convert PFM to PNG

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose png or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your png file right afterwards

About formats

PFM (Portable Float Map) is a floating-point raster image format devised by Paul Debevec around 2001, designed to store high-dynamic-range image data with the simplicity of the Netpbm family of formats. PFM extends the PBM/PGM/PPM philosophy — minimal header, raw data, no compression — to 32-bit IEEE floating-point samples, providing direct access to HDR pixel values without the encoding overhead of formats like OpenEXR or the limited range of Radiance HDR's RGBE encoding. The file structure is deliberately minimal: a two-character magic number ('Pf' for grayscale, 'PF' for color), width and height on the next line, a scale/endianness indicator (negative for little-endian, positive for big-endian, with magnitude indicating scale factor), and then the raw 32-bit float data for each pixel. PFM files store one float per pixel for grayscale or three floats (RGB) per pixel for color, with no compression, alpha channel, or metadata support. The format emerged from the HDR imaging research community where Debevec's work on image-based lighting and light stage capture required a simple, unambiguous way to store linear floating-point radiance values that could be easily exchanged between research tools. One advantage is absolute simplicity for HDR data: PFM can be read and written in a few lines of code in any language that supports IEEE floats, with no library dependencies — ideal for research prototyping and quick data exchange between custom tools. The format's widespread adoption in the computer vision and computational photography research community is another practical strength — optical flow benchmarks (Middlebury), depth estimation datasets, and radiance field captures commonly use PFM. The format is supported by ImageMagick, OpenCV, HDR Shop, and Luminance HDR.
Developer: Paul Debevec
Initial release: 2001
PNG (Portable Network Graphics) is a lossless raster image format developed by the PNG Development Group and published as a W3C Recommendation on October 1, 1996, created as a patent-free replacement for GIF after the Unisys LZW patent controversy. PNG uses a two-stage compression pipeline: a prediction filter selects the optimal per-row preprocessing (none, sub, up, average, or Paeth), then DEFLATE compression encodes the filtered data. The format supports rich color modes — 1/2/4/8/16-bit grayscale, 8/16-bit per channel true color, and indexed color with palettes up to 256 entries — all with optional alpha transparency ranging from a single transparent color to a full per-pixel alpha channel with 256 or 65536 levels. PNG also stores gamma correction, ICC color profiles, text metadata, and suggested background color. One advantage is lossless compression with transparency — PNG preserves every pixel exactly while supporting smooth semi-transparent edges, making it the standard format for web graphics, UI elements, logos, screenshots, and any image where artifacts or color shifts are unacceptable. Universal support is another core strength: every web browser, operating system, image editor, and programming library handles PNG natively. The format has proven remarkably durable — after nearly three decades, PNG remains the default lossless web image format. While newer formats like WebP and AVIF offer better compression, PNG's combination of lossless quality, full transparency, and absolute ubiquity keeps it indispensable.
Initial release: October 1, 1996

Frequently Asked Questions

Why convert PFM to PNG?

PFM stores floating-point pixel data meant for scientific and HDR workflows. Converting to PNG makes it viewable in everyday applications.

What programs open PNG files?

PNG files can be opened in any web browser, Photoshop, GIMP, Paint, Preview, and all modern image viewers.

Is batch PFM to PNG conversion possible?

Yes, Convertio lets you upload multiple PFM inputs at once. All of them are converted to PNG in parallel, speeding up your workflow.

Will my image quality survive the conversion?

Your original PFM pixel data is converted accurately to PNG. The output quality matches what the PNG format supports — no unnecessary degradation.

Does this work on Mac and Linux?

Convertio is entirely browser-based, so it works on macOS, Linux, Windows, and even mobile platforms without any software installation.

Is my PFM data safe during conversion?

Yes — uploaded data is processed securely and deleted immediately after conversion. Output files are removed from servers within 24 hours.

PFM to PNG Quality Rating

4.5 (156 votes)
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