Page updated: 13 July 2026

Lightroom Archiving: RAW vs DNG vs PSD vs TIFF vs JPEG

Choosing the right file format for long-term archiving ensures your photos remain safe, flexible and future-proof. This page explains the differences between RAW, DNG, JPEG, TIFF and PSD, and gives clear recommendations for learners with small hard disks as well as users who also work in Photoshop.

Archiving simply means keeping your original photo files safe for the long term. It’s not a special Lightroom process — and if you already keep your RAW files (and sidecar files), you’re already archiving.

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Always archive your original RAW files. That just means saving them safely. RAW contains the full sensor data, maximum dynamic range, full colour depth and the greatest editing flexibility. Lightroom’s new features — such as Denoise, are supported for RAW files first, making it the most future-proof format.

If you edit original RAW files from Canon (CR2/CR3), Nikon (NEF), Sony (ARW), Fujifilm (RAF), etc. Lightroom will create sidecar files like .XMP and .ACR to store your edits and metadata. Make sure you keep these alongside your RAW files, as they contain all your editing in Lightroom.

If you have spent time editing a file in Photoshop, with Layers, you will also need to save those files, either in .PSD, or .TIFF formats.

Why RAW Is the Best Archive

  • Preserves full sensor data
  • Maximum highlight and shadow recovery
  • Full colour depth and dynamic range
  • Non-destructive editing in Lightroom
  • Compatible with future Lightroom features
  • Smaller than TIFF or layered PSD files — if your editing can be done entirely in Lightroom
  • Even if you create layered PSD or TIFF files, the RAW remains your fallback original

Lossy DNG: A Space-Saving Alternative

If you have limited disk space — for example, an older laptop - Lossy DNG is a practical option. The visual differences compared to RAW are extremely small and often impossible to see, even on close inspection.

Lossy DNG is far better than archiving JPEGs, and preserves more flexibility than most compressed formats.

When Lossy DNG Is a Good Choice

  • Small hard disks or older laptops
  • Large photo libraries that need compact storage
  • General photography where maximum recovery is not essential

Important Note

You can use new Lightroom features on original raw files immediately. Support for converted DNG files may arrive later. When Denoise was introduced in Lightroom in April 2023, it was only available on original raw files and Linear DNGs created inside Lightroom (such as HDR and panorama merges). It could not be used on any converted DNG files, including Lossy DNG files. This support was added sometime later. If you want maximum future flexibility, keep the RAW.

PSD: When It Is Useful

PSD is a layered Photoshop format and becomes your master file whenever you spend time editing with multiple layers, masks, smart objects or detailed retouching. These files must be archived, because they contain all of your Photoshop work and cannot be recreated from the RAW file.

  • Fully supports 16‑bit and 32‑bit editing
  • Preserves layers, masks and smart objects perfectly
  • Faster to save and reopen than TIFF
  • Ideal for advanced retouching workflows
  • Maximum file size: 2 GB (larger files automatically become PSB)

Most users will never exceed the 2 GB PSD limit, especially with DSLR files such as those from the Canon 5D Mark IV. However, newer high‑resolution mirrorless cameras and very large layered edits can push file sizes higher. If a PSD becomes a PSB, Lightroom cannot preview it, and many non‑Adobe applications cannot open it. For large layered edits, TIFF is often a safer choice.

TIFF: When It Is Useful

TIFF is also a layered format and can be used as a master file, especially for very large Photoshop edits. It supports all the same 16‑bit and 32‑bit features as PSD, but has a higher maximum file size and better compatibility outside Photoshop.

  • Supports layers, masks and smart objects
  • Fully supports 16‑bit and 32‑bit editing
  • Required by some professional print labs
  • Maximum file size: 4 GB (BigTIFF can exceed this)
  • Lightroom can preview TIFF files, even when very large
  • Useful for very large layered files that may exceed PSD limits

If you are working on a full‑resolution image, especially with many layers or smart objects, the file can easily exceed 300 MB and may grow beyond 2 GB. In these cases, TIFF avoids the PSD → PSB conversion and remains fully compatible with Lightroom and most external workflows.

Summary

  • Best archive: Original RAW + sidecar files — and PSD/TIFF if you have created a layered Photoshop file
  • Space-saving option: Lossy DNG
  • JPEG originals: Archive JPEGs when they are the only version you have — for example, phone photos or cameras set to JPEG-only
  • Photoshop layered files: PSD or TIFF — archive these if they contain your editing work, in addition to the original RAW file or JPEG
  • Professional lab printing: TIFF (only if required)

For more Lightroom export tutorials, visit the Lightroom Export Presets Hub.

Happy editing!

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