Support
Email support@prestoreader.com and we’ll get back to you, usually within a couple of days. For a problem, it helps to say which device and browser or app you use, and what happened. If it’s about a particular book, mention its format (please don’t send copyrighted files unless we ask).
Common questions
Which formats can I read?
EPUB, PDF (with selectable text), TXT, Markdown, HTML, Word (DOCX), FB2, RTF and Kindle MOBI/AZW/AZW3 files without DRM. You can also paste text, or save web pages and documents with the browser extension.
Can I read books I bought on Kindle or Apple Books?
Not if they have copy protection (DRM), which most store-bought ebooks do. DRM-free books work, including the free classics in the app and books from shops that sell without DRM.
A PDF imports with little or no text.
It’s probably a scanned PDF: pictures of pages rather than text. Presto needs selectable text. Try an EPUB of the same book, or run the PDF through an OCR tool first.
Where are my books stored?
On your device: in your browser on the web, and in the app on desktop and mobile. They’re only uploaded if library sync is on for your account. Clearing your browser’s data for prestoreader.com removes the web library, so keep your own copies.
Do I need an account?
No. Everything works offline without one. A free account backs up your stats, streak and settings and keeps them in step across devices. Syncing your books and reading positions (library sync) is available to invited testers for now.
My devices aren’t in sync.
Make sure you’re signed in to the same account on each, then use Settings → Sync across devices → Sync now on both. Books synced from another device download their text the first time you open them, so that device needs to be online once.
How do I save web pages with the extension?
Click the Presto button (or press Alt+Shift+R) to save the page and open it in Presto, or right-click to save a page, a selection or a link to a PDF or document. Saved items go into your Presto web library in that browser.
My daily reminder doesn’t arrive.
Turn it on in Settings → Reminders & progress and allow notifications when asked. On the web and desktop, reminders only show while Presto is open. No reminder comes once you’ve met the day’s goal.
How do I delete my data?
Delete books in the library, or your whole account in Settings → Sync across devices → Delete account.