Size — Lossless

: Think of it like IKEA furniture. The "uncompressed" version is the fully built dresser, taking up a whole room. The "lossless" version is the flat-pack box—it takes up much less space, but contains every single piece needed to rebuild the dresser perfectly. Lossless Size Expectations

By optimizing for using Zstandard with a custom dictionary, they got down to 12TB. That is a 88% storage cost reduction while retaining 100% of the data. lossless size

Lossless size refers to the ability to compress data without losing any of its original information or quality. In other words, a lossless compression algorithm reduces the size of a file without discarding any of its contents, ensuring that the decompressed file is identical to the original. This is in contrast to lossy compression, which discards some of the data to achieve a smaller file size, often compromising the quality of the file. : Think of it like IKEA furniture

In radiology (DICOM files) or legal discovery (PDFs), losing a single pixel or a single word is fraud. The file must be bit-for-bit identical to the original. Here, the is the only acceptable size. Lossless Size Expectations By optimizing for using Zstandard

: Lossless size: 1.2 MB (saves 18%)

In the digital world, we are constantly juggling a paradox: we want the highest possible quality, but we also want files that don't swallow our hard drives whole. This is where the concept of comes into play.

How does lossless compression work without losing original pixels?