Convert SRW to DJVU
Max file size 100mb.
SRW vs DJVU Format Comparison
| Aspect | SRW (Source Format) | DJVU (Target Format) |
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| Format Overview | SRW Samsung RAW Format Samsung's proprietary RAW format from the NX mirrorless camera system, storing 12/14-bit unprocessed sensor data. The NX system was discontinued in 2015 but produced capable APS-C cameras with Samsung's BSI-CMOS sensors. Lossless RAW | DJVU DjVu Document Format AT&T Labs' wavelet-compressed document format using IW44 compression with foreground/background separation for extreme compression of images and documents. Lossy Standard |
| Technical Specifications | Color Depth: 12/14-bit per channel Compression: Lossless compressed Transparency: Not supported Animation: Not supported Extensions: .srw | Color Depth: 24-bit RGB Compression: IW44 wavelet + JB2 text Transparency: Mask layer Multi-page: Bundled documents Extensions: .djvu, .djv |
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| Processing & Tools | SRW from discontinued Samsung NX system, processed with third-party RAW software.
import rawpy
raw = rawpy.imread('photo.srw')
rgb = raw.postprocess()
dcraw -T photo.srw | DJVU encoding via wavelet compression tools. c44 input.ppm output.djvu -slice 74 djvm -c album.djvu p1.djvu p2.djvu |
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| Version History | Introduced: 2010 (Samsung NX10) Current Version: SRW 14-bit (NX1, 2014) Status: Discontinued (NX system ended 2015) Evolution: SRW 12-bit (NX10) → SRW 14-bit (NX1, 2014) | Introduced: 1996 (AT&T Labs) Current Version: DjVu 3 (2001) Status: Stable, open-source Evolution: DjVu 1 → DjVu 2 → DjVu 3 (2001) |
| Software Support | Image Editors: Lightroom, darktable, RawTherapee Web Browsers: Not supported OS Preview: Limited Mobile: Minimal CLI Tools: dcraw, LibRaw, rawpy | Viewers: DjView, WinDjView, Evince, Okular Web Browsers: Via plugin or JS viewer OS Preview: Linux native, others third-party Mobile: EBookDroid, DjVu Reader CLI Tools: DjVuLibre (c44, djvm) |
Why Convert SRW to DJVU?
Samsung discontinued the NX camera system in 2015, making SRW a legacy format at increasing risk of declining software support. Converting SRW archives to DJVU creates viewable, future-proof copies of these photographs independent of Samsung-specific or RAW processing software.
The NX1 and NX500 produced excellent 28 MP images with Samsung's BSI-CMOS sensors. Photographers who invested in this system have valuable collections in SRW format that deserve preservation. DJVU provides a compact, stable archive format accessible through free, open-source viewers.
DJVU's multi-page bundling is ideal for compiling entire SRW collections into organized, browsable documents. Years of Samsung NX photography can be consolidated into single navigable files with dramatic storage savings.
The conversion renders SRW data through standard demosaicing at 8-bit output. Samsung Smart Filter presets are not applied. Original SRW files should be retained for potential future reprocessing.
Key Benefits of Converting SRW to DJVU:
- Future-Proof Archives: Preserve discontinued format photos viewably
- Format Independence: No Samsung or RAW software needed
- Extreme Compression: 95%+ reduction from RAW data
- Collection Organization: Bundle NX photo collections into documents
- Storage Efficiency: Reclaim space from large RAW archives
- Open Ecosystem: Free DJVU viewers on all platforms
- Progressive Browsing: Quick preview of large collections
Practical Examples
Example 1: Samsung NX System Complete Archive
Scenario: An NX1 owner preserves their entire Samsung photography collection before potential future software compatibility issues.
Source: nx1_collection_2014_2020/*.srw (3,500 files, ~56 GB) Target: nx1_complete_archive.djvu (3,500 pages, ~240 MB) Result: Entire NX1 collection in 240 MB browsable document, future-proof against declining SRW software support.
Example 2: Wedding Photography Delivery
Scenario: A photographer delivers wedding coverage shot on NX1 as a compact proof document for couple's review.
Source: kim_wedding_*.srw (400 files, NX1, ~12 GB) Target: kim_wedding_proofs.djvu (400 pages, ~65 MB) Result: Complete wedding proofs in 65 MB for online delivery, viewable on any device for selection.
Example 3: NX Photography Showcase
Scenario: An NX system enthusiast compiles their best work to share with the Samsung NX community online.
Source: nx_best_of_*.srw (50 images, various NX models, ~1.5 GB) Target: nx_showcase.djvu (50 pages, ~8 MB) Result: Curated showcase in 8 MB, shareable on NX community forums and social media groups.
Frequently Asked Questions (FAQ)
Q: Which Samsung cameras produce SRW files?
A: Samsung NX mirrorless cameras: NX1, NX500, NX300, NX30, NX200, NX210, NX1000, NX2000, NX3000, NX mini, and NX10. All SRW versions are supported.
Q: Will Samsung Smart Filter effects be applied?
A: No. Standard demosaicing is used. Smart Filter metadata is not applied during conversion. For styled output, process in Samsung's discontinued software or Lightroom first.
Q: Is SRW support declining in RAW software?
A: Currently major tools still support SRW. However, with no new Samsung cameras producing the format, long-term support is uncertain. DJVU conversion provides insurance against future incompatibility.
Q: How much smaller are DJVU files vs SRW?
A: Typically 50-100x smaller. A 16 MB NX1 SRW becomes approximately 200-500 KB as DJVU depending on image complexity.
Q: Can I recover SRW from DJVU?
A: No. Raw sensor data cannot be reconstructed from lossy compressed output. Keep original SRW files as the authoritative source.
Q: Is the NX1's 28 MP resolution preserved?
A: Yes, pixel dimensions are maintained. A 6480x4320 NX1 capture produces a 6480x4320 DJVU page. Wavelet compression reduces file size, not resolution.
Q: Should I convert all my SRW files to DJVU?
A: Convert for viewing archives and distribution. Keep original SRW files on backup storage for potential future reprocessing. DJVU serves as the accessible viewing copy.
Q: Can I batch convert NX collections?
A: Yes. Upload multiple SRW files for individual conversion, then bundle into multi-page DJVU documents for organized archival.