Problem is the same on my W540 ThinkPad with Windows 10 1607 and an external Dell monitor over DisplayPort, about as standard and simple as Windows computers come. Need a close button that is literally 2x3cm in size? Acrobat has you covered. Any other reasonable use case, you gotta use something else. Adobe used to be all about WYSIWYG display quality, but the display on an external monitor is just so hilariously bad that I've come up with a really similar solution: 1) Uninstall Acrobat 2) Use Google Chrome Attached a screenshot of a HiDPI-aware app (Excel 2016) and Acrobat side by side. The two windows are exactly the same size on the screen, one is usable, one is blatantly not. ... View more

Hey ravij6114805, that doesn't work for me. I've used that trick on my other Adobe apps like Photoshop or Premiere CS6, but it doesn't work Acrobat Reader DC. My path to the executable where is this: C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe And the manifest is named AcroRd32.exe.manifest Any other ideas? ... View more

Same issue here, the application is totally unaware that the DPI is changing on the external monitor. Setting no scale only affects some elements - the title bar, menu bar and scroll bars are still ridiculously huge on the external monitor, and too small on the laptop monitor. Even Notepad can get this right, come on Adobe! Lenovo W540 Built-in display 2880*1620, scaling 200% External display 1920*1080, scaling 100% ... View more