Add your PEF file
Drop one or more .pef 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.
PEF to TIFF
Developing a .pef camera file into .tiff 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 PEF 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 Pentax RAW to TIFF image
Developing a .pef camera file into .tiff turns unprocessed sensor data into a finished image any app can open. A .pef file is a Pentax Electronic File, the proprietary RAW format of Pentax DSLRs now produced under Ricoh Imaging. Pentax is unusual in offering photographers an in-camera choice between .pef and Adobe's open DNG, making it one of the few brands to treat its native RAW as optional.
A .tiff file is a Tagged Image File Format raster, the long-standing archival and prepress standard for images that must not lose a single bit. Its tag-based structure lets one .tiff hold multiple pages, layers of metadata, and pixel formats from 1-bit fax scans to 32-bit floating-point channels. For this route the practical draw is losslessly preserves any bit depth and color space you throw at it and decades of stability make it the safest long-term archival bet — balanced against files are huge — often 10x a visually identical JPEG, which is worth knowing before you commit a large batch.
Why convert PEF to TIFF?
The practical trigger for this conversion is usually a mismatch: with .pef, smaller ecosystem than Canon/Nikon/Sony formats, so niche tools sometimes lag. Switching to .tiff buys you losslessly preserves any bit depth and color space you throw at it, which is why it is the better fit for archival masters for museums, libraries, and digitization projects. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
PEF vs TIFF at a glance
| Aspect | Pentax RAW (.pef) | TIFF image (.tiff) |
|---|---|---|
| Format type | Lossless — every pixel or sample is preserved exactly | Lossless — every pixel or sample is preserved exactly |
| How it stores data | tIFF-based structure holding 12- or 14-bit Bayer mosaic data depending on body generation | structured as Image File Directories (IFDs) of numbered tags, allowing multiple images per file |
| Strongest at | raw development from Pentax K-mount DSLRs and the 645 medium-format line | archival masters for museums, libraries, and digitization projects |
| Weak spot | smaller ecosystem than Canon/Nikon/Sony formats, so niche tools sometimes lag | files are huge — often 10x a visually identical JPEG |
| Metadata | full EXIF with Pentax MakerNotes covering lens ID, shake-reduction state, and drive modes; XMP edits are stored in sidecar files by mainstream editors | eXIF is itself structured as TIFF tags, so TIFF holds it natively, alongside XMP packets, IPTC records, ICC profiles, and GeoTIFF georeferencing tags |
Pick TIFF as the output
Select .tiff in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if TIFF 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 TIFF file. Outputs keep the original filename with the .tiff extension.
PEF to TIFF questions, answered
Will converting PEF to TIFF lose quality?
Since pef is lossless-oriented and tiff is lossless-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .tiff itself requires.
Is it private to convert PEF files here?
Yes — the .pef 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 TIFF file work?
Every serious image editor, scanner driver, and DTP application on Windows, macOS, and Linux reads TIFF, and both major OSes preview it natively. Web browsers are the gap: Chrome, Firefox, and Edge will download rather than display a .tiff, so web delivery always requires conversion to PNG, JPEG, or WebP.
Will the TIFF file be bigger or smaller than my PEF?
It depends on the content: structured as Image File Directories (IFDs) of numbered tags, allowing multiple images per file. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my PEF file?
In .pef, full EXIF with Pentax MakerNotes covering lens ID, shake-reduction state, and drive modes; XMP edits are stored in sidecar files by mainstream editors. 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.