Adobe Illustrator the world's most famous vector graphics software. Depending on powerful function and considerate UI design, it has dominated the most of market share among all vector editing software in the world. According to an incomplete statistics, at least 37% of global designers are using Adobe Illustrator for art design.
Adobe Photoshop Lightroom is a professional and efficient digital photo managing and post-processing software. It integrated the workflow and processing technique of Pixmantec ApS' RawShooter (from Denmark), and enables you to spend less time finishing and perfecting your photos. Jut because the ability of greatly improving the work efficiency, it has long been loved by many professional photographers.
To a great extent, the decline of Adobe Flash is not the fault of the Flash technology itself, but because the known and unknown vulnerabilities of Adobe Flash Player are countless, very serious, and hard to prevent. As a consequence, in January 2016, this classic 2D animation authoring tool Adobe Flash Professional CC with 20 years of development history was officially renamed to Adobe Animate CC. At this point, the whole Internet formally started to weed Flash out (of course, the initiator is still Google Chrome).
Adobe InDesign is a DTP (desktop publishing) application developed by Adobe Systems company, which is mainly used for the typesetting's editing & designing of all kinds of presswork. It is released aiming directly at its rival QuarkXPress. Although initially faced some difficulties in attracting customers, yet it had begun to catch up with and surpass its competitors after the Mac OS X edition released in 2002.