· View and adjust raw image files at 1:1; unlimited image size
· iOS 12 optimized with multitasking support
· 64-bit processing
· AirDrop for exported images
· View EXIF and GPS data
· Full range of image adjustments, JPEG and TIFF exports, etc
· Pixel magnify - up to 1:4 pixel viewing
· Opens images imported from Eye-Fi cards

PhotoRaw for iOS is a viewer and developer for image files in raw format. Raw file formats from most camera manufacturers are supported, for example Nikon NEF files, Canon CR2 files, Leica DNG files, etc - see the product web site for a full list of supported cameras. PhotoRaw allows you to view these files at full 1:1 pixel resolution, even 100 mega-pixel plus medium format images.

PhotoRaw implements virtual memory. Virtual memory means that if PhotoRaw runs low on physical RAM because of other apps running the background, it can use the device's flash memory to process even the largest images. PhotoRaw has been tested with images of up to 72 MPixels on both iPads and iPhones, even with multiple other apps running the background.

Most images viewers for the iPhone, iPad and iPod Touch are only able to display low resolution thumbnails of raw images, making it difficult to use the iPhone or iPad to evaluate and view raw files in the field. PhotoRaw changes all that. PhotoRaw incorporates a state-of-the-art AHD raw image demosaicing algorithm right into an iOS app. So now you can view every single pixel in a raw file, without needing a desktop machine or laptop.

To ensure that you see your images in a form as close as possible to what you'll see using a full featured desktop raw developer program such as Aperture, PhotoRaw incorporates a full demosaicing engine, as well as basic exposure controls such as exposure, contrast and brightness. You can even control sharpening to make sure that the image looks its best.

You can also export images, or cropped portions of images, from PhotoRaw in JPEG or TIFF format. So you can email a processed, cropped JPEG to clients or friends right from your iPad or iPhone.

· PhotoRaw supports only raw formats; JPEG, TIFF etc images are not supported
· Importing large raw files can take up to several minutes, especially if other apps are running in the background

System Requirements: Raw conversion requires very substantial amounts of processing power and memory. We strongly recommend the following minimum system specifications:
· iOS 8 or later
· iPad or iPhone 4 or later

What's New

Version 4.4.19

Updates for iOS 12

Ratings and Reviews

Very Good!


I don't know how much slower the previous version was as I've only just stumbled across this app but this latest version is fast enough for me. I've been processing Leica DNG's in Capture One on a Mac for the last four years and I'm amazed at how good the conversions are with this app. The lack of control over sharpening (which has to take place on import due to platform limitations) has actually turned out to be a bonus for me. No more fiddling about and never coming to any definite conclusion, I just set the sharpening to auto and every file so far just looks right - no halos and superb resolution. Option to save as Tiff would be nice but I don't know if this is a possibility. Highly recommended!

Well it's not like you have a lot of choice....


If you need to import DNG files this is the only app that does it. It makes a fair go of it, but its no Adobe Camera RAW. Obviously once they are on a IPad output files sizes are limited by the device. The UI is a bit primitive, but it does what it says on the tin.
It's a little faster with the update and the UI although slightly improved is still primitive, but at the end of the day, there's still no other choice. If possible I'd like the IPAD not to go to sleep while importing a batch of DNGs as you keep having to tap the screen to keep the conversions going.

Needs improvements


I decided to buy this app to work with my Leica D-Lux 5 and the RAW files. There are a few problems I would like to see ironed out to improve this app.
The adjustment buttons need to be larger and more visible to help the user as the sliders are to small to comfortably use giving a less than smooth operation, a cancel/go back button is needed to exit the editing mode, and a clear all/ delete button in the import section is needed to clear no longer wanted imports.
Would be nice if this app was a little bit less pricey — bring it down to under a fiver would help.
Other than that, a nice app that works with my RAW files.


Alexander McGuffog
7 MB
Photo & Video
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© 2011-2018 Sandy McGuffog


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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