The most comprehensive list of degrading resolution websites last updated on Sep 1 2023. Stats collected from various trackers included with free apps.
PDF Compressor – Compress PDF Files Online This online PDF compressor allows to compress PDF files without degrading the resolution (DPI), thus keeping your files printable and zoomable.
Shrink PDF – Reduce PDF Documents Online This service shrinks your PDF documents online without degrading resolution, thus avoiding the loss of clarity you may experience using other tools.