MobileRead Forums - View Single Post - Calibre update causes the Viewer to look low-res

Dimaleth · 02-28-2025, 12:09 PM

Hello, I have blurry text in Calibre versions 6 and 7.

Comparison images:

3.48 https://i.imgur.com/ZT0FNX9.png

7.26.0 https://i.imgur.com/90btFYS.png

I tried the following versions:

7.26.0 64bit installer and portable

7.0.0 portable

6.29.0 portable

6.0.0 portable

5.44.0 portable

5.0.0 portable

4.23.0 portable

4.0.0 portable

3.48.0 portable

Only Calibre 3.48, 4.0.0, 4.23, 5.0.0 and 5.44 has normal non-blurry text, but text in 3.48 still looks a tiny bit better. Text in 4.0.0, 4.23, 5.0.0 and 5.44 looks exactly the same.

3.48 https://i.imgur.com/ZT0FNX9.png

4.23 https://i.imgur.com/dja0fOU.png

5.44 https://i.imgur.com/BDHYceL.png

The font in all versions is Times New Roman at 20px. I tried other fonts, same problem. Windows 10, resolution scaling is at default 100%.

The file used in the screenshots is "Quick Start Guide - John Schember.epub" that comes with Calibre.

I tried all possible solutions from this thread, including Environment Variables (and restarting computer afterwards) and changing DPI scaling settings in file properties, zero change.

02-28-2025, 12:09 PM	#56
Dimaleth Junior Member Posts: 3 Karma: 10 Join Date: Feb 2025 Device: Calibre	Hello, I have blurry text in Calibre versions 6 and 7. Comparison images: 3.48 https://i.imgur.com/ZT0FNX9.png 7.26.0 https://i.imgur.com/90btFYS.png I tried the following versions: 7.26.0 64bit installer and portable 7.0.0 portable 6.29.0 portable 6.0.0 portable 5.44.0 portable 5.0.0 portable 4.23.0 portable 4.0.0 portable 3.48.0 portable Only Calibre 3.48, 4.0.0, 4.23, 5.0.0 and 5.44 has normal non-blurry text, but text in 3.48 still looks a tiny bit better. Text in 4.0.0, 4.23, 5.0.0 and 5.44 looks exactly the same. 3.48 https://i.imgur.com/ZT0FNX9.png 4.23 https://i.imgur.com/dja0fOU.png 5.44 https://i.imgur.com/BDHYceL.png The font in all versions is Times New Roman at 20px. I tried other fonts, same problem. Windows 10, resolution scaling is at default 100%. The file used in the screenshots is "Quick Start Guide - John Schember.epub" that comes with Calibre. I tried all possible solutions from this thread, including Environment Variables (and restarting computer afterwards) and changing DPI scaling settings in file properties, zero change.