CompressionLossy and lossless compression, and what a JPEG does to a hard edge.Art & DesignLosslessNothing at all is discardedPNG, TIFF with LZW, WebPlosslessRepeated saves are safeLarger filesRight for masters and flat colourLossyDetail is discarded permanentlyJPEG, WebP, AVIF, most videoEvery save degrades it furtherMuch smaller filesRight for photographs at deliveryTHE DIFFERENCE THAT MATTERSKeep a lossless master. Export lossy copies from that master, neverfrom a previous lossy export.JPEG works in 8 × 8 blocks and discards colour detail first, which iswhy text and flat-colour edges fringe and smear.Compressionlearnposters.com
Compression — printable design wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Compression poster

Lossless against Lossy, side by side.

JPEG works in 8 × 8 blocks and discards colour detail first, which is why text and flat-colour edges fringe and smear.

Questions about the Compression poster

What’s on the Compression (Digital design) poster?
Lossless against Lossy, side by side. Lossless: Nothing at all is discarded; Lossless: PNG, TIFF with LZW, WebP lossless; Lossless: Repeated saves are safe; Lossless: Larger files; Lossless: Right for masters and flat colour; Lossy: Detail is discarded permanently; Lossy: JPEG, WebP, AVIF, most video; Lossy: Every save degrades it further; Lossy: Much smaller files; Lossy: Right for photographs at delivery; Keep a lossless master. Export lossy copies from that master, never from a previous l…. JPEG works in 8 × 8 blocks and discards colour detail first, which is why text and flat-colour edges fringe and smear.
Who is the Compression (Digital design) poster for?
Compression (Digital design) belongs to the Art & Design section rather than to a school year, because design is not something one grade owns. Anyone learning digital design can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Compression (Digital design) poster?
Use it when an exported image comes out soft, blocky or fringed. A wall chart earns its place by being glanceable from where the work is happening, so Compression (Digital design) belongs on the wall where that design work actually happens, within glancing distance, rather than filed away.
What other posters go with Compression (Digital design)?
Bezier Curves, Bleed & Trim and Colour Profiles sit alongside Compression (Digital design) in the Art & Design section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Bezier CurvesBleed & TrimColour Profiles
Is the Compression (Digital design) poster free to download and print?
Yes. Compression (Digital design) downloads as a free PDF with no account, no email and no watermark, like everything else in the Art & Design section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Compression (Digital design) poster print at?
Compression (Digital design) is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Compression (Digital design) loses nothing.Printing guide

Related posters

Charts that sit alongside Compression on the same wall.

Browse every Art & Design poster, or start from the full catalogue.