Add your ORF file
Drop one or more .orf files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
ORF to PBM
Developing a .orf camera file into .pbm turns unprocessed sensor data into a finished image any app can open. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop ORF files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting Olympus RAW to Portable bitmap
Developing a .orf camera file into .pbm turns unprocessed sensor data into a finished image any app can open. An .orf file is an Olympus RAW Format photograph from Olympus and successor OM System cameras, storing the Four Thirds sensor's output before in-camera processing. The extension has covered every Olympus digital generation from early E-system DSLRs through today's OM-1 mirrorless bodies.
A .pbm file is a Portable Bitmap: the simplest image format in common use, storing exactly one bit per pixel — black or white, with no grey and no colour. It carries a two-character magic number, the width and height, and then the pixels, and nothing else. For this route the practical draw is small enough to specify in a paragraph and to write from a shell script and uncompressed and lossless, so nothing is hidden between the header and the pixels — balanced against one bit per pixel — no grey, no colour, no transparency, which is worth knowing before you commit a large batch.
Why convert ORF to PBM?
The practical trigger for this conversion is usually a mismatch: with .orf, the nonstandard TIFF header confuses generic tools that assume spec compliance. Switching to .pbm buys you small enough to specify in a paragraph and to write from a shell script, which is why it is the better fit for masks, stencils and other genuinely two-tone raster data. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
ORF vs PBM at a glance
| Aspect | Olympus RAW (.orf) | Portable bitmap (.pbm) |
|---|---|---|
| Format type | Lossless — every pixel or sample is preserved exactly | Lossless — every pixel or sample is preserved exactly |
| How it stores data | tIFF-like structure with deliberate header deviations (magic bytes IIRO/IIRS rather than standard TIFF) that trip naive parsers | two encodings share the extension: P1 stores pixels as ASCII 0 and 1 characters, P4 packs eight pixels into each byte |
| Strongest at | developing photos from Olympus and OM System Micro Four Thirds cameras | masks, stencils and other genuinely two-tone raster data |
| Weak spot | the nonstandard TIFF header confuses generic tools that assume spec compliance | one bit per pixel — no grey, no colour, no transparency |
| Metadata | eXIF is complete and Olympus MakerNotes are unusually detailed about stabilization, focus bracketing, and computational modes; XMP normally lives in sidecars | none beyond optional # comments in the header. There is no colour profile, no EXIF and no timestamp; a PBM carries dimensions and pixels and nothing else |
Pick PBM as the output
Select .pbm in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if PBM is selectable, the route is real and validated.
Convert on your device
Press Convert. A LibRaw WebAssembly decoder demosaics the sensor data in your browser and renders a developed image ready for export.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid PBM file. Outputs keep the original filename with the .pbm extension.
ORF to PBM questions, answered
Will converting ORF to PBM lose quality?
Since orf is lossless-oriented and pbm is lossless-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .pbm itself requires.
Is it private to convert ORF files here?
Yes — the .orf file is processed inside your browser tab and never uploaded. A LibRaw WebAssembly decoder demosaics the sensor data in your browser and renders a developed image ready for export. Close the tab and the file is gone from memory.
Where will the PBM file work?
Netpbm, ImageMagick, GIMP and most scientific imaging tools read PBM; browsers and consumer applications do not. Novus Convert decodes both the ASCII and the packed binary form locally and converts to PNG, JPEG, WebP and the other raster targets — which is usually the point, since PBM is a good interchange format and a poor delivery one.
Will the PBM file be bigger or smaller than my ORF?
It depends on the content: two encodings share the extension: P1 stores pixels as ASCII 0 and 1 characters, P4 packs eight pixels into each byte. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my ORF file?
In .orf, eXIF is complete and Olympus MakerNotes are unusually detailed about stabilization, focus bracketing, and computational modes; XMP normally lives in sidecars. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.