ImageOptim vs Zhizhi Reader
A side-by-side look at ImageOptim and Zhizhi Reader. For an in-depth review of either product, follow the links below.
ImageOptim
Photos & Graphics
ImageOptim is a free app that losslessly optimizes images by removing extra metadata and making compression more efficient. It works with common image formats like JPG, PNG, GIF, and SVG.
imageoptimizationcompressionmetadatajpegpnggifsvg
Zhizhi Reader
Education & Reference
Zhizhi Reader is a free and open source document reader and annotation tool. It supports PDF, EPUB, MOBI, AZW, and other common file formats, allowing users to view, annotate, highlight, and manage documents and ebooks.
document-readerpdf-readerebook-readeropen-source
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