Reflowing text
No more pinching and panning: lines wrap to fit the screen you are holding.
PDF reader
Read a PDF like a real book.
PDFs are made for printing, not for reading on a screen. DeltaScroll turns a PDF into a book whose text flows to fit your phone or monitor, with chapters you can jump between and a font you can change.
- Android, Windows and web
- No account
- No ads
How it works
Three steps, then just read.
Import the PDF
Choose a PDF on your phone, PC or in the web reader.
DeltaScroll builds the book
It finds the chapters, keeps the figures and makes a cover, on your device.
Read comfortably
Text reflows to your screen, in the theme, font and size you choose.
What you get
PDF reader, done properly.
Chapters found for you
Headings become a table of contents you can navigate.
Figures kept
Images and diagrams from the PDF stay in the book.
Long documents
PDFs of up to 2,000 pages can be converted.
Highlight and listen
Highlights, notes, search and read-aloud work just as they do in any book.
Private conversion
The PDF never leaves your device. Nothing is uploaded.
PDF reader
Good to know
DeltaScroll reads the text inside a PDF. It works best with PDFs created from documents or ebooks. Scanned PDFs that contain only page images are not supported yet.
- Best for text PDFsArticles, reports, papers and ebooks saved as PDF.
- On your deviceConversion runs locally on Android, Windows and the web.
- Keeps your progressThe converted book remembers your place like any other.
Questions
PDF reader questions.
Can I change the font of a PDF?
Yes. DeltaScroll turns the PDF into a reflowing book, so you can change the font, size, spacing and theme like any ebook.
Is my PDF uploaded anywhere?
No. The PDF is converted on your own device, and the resulting book is stored there too.
Does it work with scanned PDFs?
Not yet. DeltaScroll needs the text inside the PDF. Scanned PDFs made only of page images cannot be converted for now.
Can DeltaScroll read a PDF aloud?
Yes. Once the PDF is in your library, read-aloud works on it like any other book.
Keep exploring
More that DeltaScroll does well.
PDF to EPUB
Convert PDF to EPUB without uploading it.
Convert PDF to EPUB on your own device, with no upload. DeltaScroll finds chapters, keeps images and builds a cover, then opens the book ready to read.
DOCX readerRead Word documents without Word.
Open Word documents on your phone, PC or browser and read them like a book. DeltaScroll turns DOCX files into chapters with themes, notes and read-aloud.
Read aloudLet your books read themselves to you.
Listen to your books with DeltaScroll. Natural voices read EPUB, PDF and DOCX books aloud, each sentence lights up as it is read, and you set the speed.
EPUB readerThe EPUB reader made for long reads.
Open EPUB books on Android, Windows or in your browser. DeltaScroll gives you page curls, five themes, six fonts, highlights and read-aloud, all offline.
Get DeltaScroll
On the screen you already have.
Android
Google PlayYour library in your pocket, with page turns that feel like paper and read-aloud for the commute.
- Phones and tablets, Android 8.0 or later
- Opens files from any app
- Google Drive backup
Windows
Free downloadA focused desktop reader with tabs for your books, natural voices and local PDF and DOCX conversion.
- Windows 10 and 11, 64-bit
- Opens .epub, .pdf and .docx from File Explorer
- Updates itself
Web
Nothing to installOpen your library in any modern browser. Install it as an app if you like, and keep reading offline.
- Any modern browser, on any computer
- Works offline once a book is added
- Installable as an app
Your next book is waiting.
DeltaScroll is free to use, with no account and no ads. Pick your device and start reading.