UniReader 0.2.3

需要 macOS 26（Tahoe）或更高版本。已用 Developer ID 签名并通过 Apple 公证。
Requires macOS 26 (Tahoe) or later. Signed with Developer ID and notarized by Apple.

下载 UniReader-0.2.3.dmg 打开后把 UniReader 拖进「应用程序」；或者下载 zip，解压后把 UniReader.app 放进「应用程序」。
Download UniReader-0.2.3.dmg and drag UniReader into Applications, or unzip the zip and move UniReader.app into Applications.

中文

新功能

• 增强扫描页：扫描版 PDF 纸色发黄、底色发灰、文字偏淡时，可以在「视图 › 增强扫描页」里为这篇文档打开。打开后页面底色变白、文字加深、边缘更清楚，只改变这台 Mac 上的显示效果，不修改 PDF 文件。
• 在设置 ›「阅读」›「扫描页增强」里可以调节降噪、底色变白、文字加深、锐化的强度，也可以选择「黑白」（去掉彩色杂色，但彩色插图也会变成灰色）和「精细处理（较慢）」（按 2 倍分辨率处理，文字边缘更平滑）；「恢复默认」一键还原。
• 目前只作用于主阅读区；参考窗、缩略图、草稿纸和平板上仍显示原图。

English

New

• Enhance Scanned Pages: when a scanned PDF has yellowed paper, a gray background or faint text, turn on View › Enhance Scanned Pages for that document. The background turns white, text gets darker and edges get crisper. It only changes how pages are drawn on this Mac; the PDF file is not modified.
• In Settings › Reading › Scanned Page Enhancement you can adjust noise reduction, background whitening, text darkening and sharpening, and choose Black and white (removes color noise, but color figures turn gray too) or Fine processing (slower; works at twice the resolution for smoother text edges). Restore Defaults brings everything back.
• For now it applies to the main reading area only; the reference window, thumbnails, scratch paper and the tablet still show the original pages.