Yes, if you obtain it legally. Most creators allow personal printing for your own use. Selling printed copies without permission is illegal.
While digital files are great for convenience, the best way to support independent comics is to support the original artist. If you enjoy the PDF, consider supporting the creator's official pages for high-resolution prints, merchandise, and future projects!
Dear [Creator Name], I’m a big fan of Miss Rita and would love to read episodes offline. Do you offer a full or season-based PDF for sale or for Patreon supporters? If not, would you consider making one available? Thank you for your wonderful work.
Some indie comics cross-list on Amazon’s Kindle or ComiXology. While the default format is MOBI or Kindle-specific, you can often request a PDF version or convert it. Search for "Miss Rita" on Amazon Kindle Store.