Before getting into the best Adobe Lightroom alternatives, it is important to include a side note on the topic of image formats. Before getting started with this software, it’s crucial to understand the difference between raw and compressed image files, which then releases the full potential of photo management software. In contrast to pure image processing programs such as Photoshop, the focus is less on the creative design than on the correct archiving, adjustment and presentation of the images.
When it comes to digital storage formats, there is a difference between compressed and raw image files. The most common compressed format for digital images is JPEG (the ‘Joint Photographic Experts Group’ format, usually written as.jpg or .jpeg); other very well-known formats include PNG, GIF and the container format, TIFF. It saves and compresses images so that they require 5 to 10 times less space as pure raw files, which also accelerates the storage process. However, compression also leads to a loss in visual quality; when it comes to JPEG compressions, an automatic white balance is set and image value are compressed in descending order according to relevance and the quality therefore fluctuates, with the loss in quality being more apparent in some images than in others. As a result, the loss in quality always depends on the level of detail in the image, i.e. the contrast or resolution.
As well as in their compressed form, files can also come in their ‘raw’ form. These raw files contain the unprocessed image information of the original file and are therefore of a higher quality than compressed files. Digital cameras issue raw files individually in different file formats such as .raw, .dng, .raf, and .crw. Some smartphones also support this output. Because raw formats contain different information depending on the camera manufacturer, you need additional raw-converters to change them to compressed, more manageable formats such as JPEG, TIFF, or PNG. Raw files are significantly larger than the latter mentioned formats, which means they also occupy far more space on an SD card, which is often rather unpractical. For this reason, photo management software for creating storage-friendly formats are ideal. Read on for a breakdown of some of the best free alternatives to Lightroom.