I’ve found PDF Viewer from PSPDFKit GmbH to perform very well, though I also sometimes use Documents by Readdle which lets me do things like reorder pages witho

I’ve found PDF Viewer from PSPDFKit GmbH to perform very well, though I also sometimes use Documents by Readdle which lets me do things like reorder pages without a subscription. Not sure if Documents is still that way for new users or only because I paid for it back before everything under the sun turned into a subscription.