SideBooks is a free viewer for PDF and comics. It supports many formats such as PDF, ZIP, CBZ, RAR, and CBR.
The screen rotation lock and password protection functions can protect your device. The function will be activated when you turn on your device.
In addition, you can use the in-page links to go to the next or previous page, and the page number of the last page read will be saved so you don't have to remember it. You can search for text in the pages of your PDF books, and you can also display the contents of the PDF books by scrolling down or up.
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