PDF to MOBI Converter
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
Reset to defaults
Need help?How to Convert PDF to MOBI Online
- Upload Your PDF: Click "+ Add Files" to select a PDF file from your computer, Google Drive, or Dropbox.
- Convert and Download: Click "Convert" and download your MOBI e-book file.
Why Convert PDF to MOBI?
Read PDFs on Kindle
Kindle can display PDFs, but the experience is poor — fixed layout, tiny text on the 6" screen, constant zooming and scrolling. MOBI provides reflowable text that adapts to the Kindle screen with adjustable font size, bookmarks, and dictionary lookup.
Older Kindle Compatibility
MOBI is the traditional Kindle format that works on every Kindle model ever made — including older Paperwhite, Voyage, Keyboard, and basic Kindle devices. Newer Kindles (2022+) also support EPUB, but MOBI remains the safest choice for maximum Kindle compatibility.
Send to Kindle
MOBI files can be emailed directly to your Kindle's email address (found in Settings → My Account → Send-to-Kindle Email) for wireless delivery to your device.
MOBI vs EPUB for Kindle
| MOBI | EPUB | |
|---|---|---|
| Older Kindles (pre-2022) | ✅ Supported | ❌ Not supported |
| Newer Kindles (2022+) | ✅ Supported | ✅ Supported |
| Send to Kindle email | ✅ Works | ✅ Works (newer Kindles) |
| Amazon status | Being phased out | Becoming preferred |
| Other e-readers | ❌ Kindle only | ✅ Universal |
Note: Amazon is gradually phasing out MOBI in favor of EPUB. For newer Kindles, consider PDF to EPUB instead.
What to Expect
MOBI uses reflowable text, so the exact PDF layout won't be preserved. Text content, headings, and basic formatting are maintained, but complex layouts (multi-column, precise positioning) will reflow to fit the Kindle screen. Best results with text-heavy documents (novels, reports, articles).
Frequently Asked Questions
Will the formatting be preserved?
Text content and basic formatting (headings, bold, italic, lists) are preserved. Complex PDF layouts reflow to fit the Kindle screen — this is by design for readability.
Can I read the MOBI on non-Kindle devices?
MOBI is primarily a Kindle format. For other e-readers (Kobo, Nook, Apple Books), use PDF to EPUB instead.
What about scanned PDFs?
Scanned PDFs contain images of text, not actual text. The conversion includes page images, but text won't be reflowable. Use OCR first for best results.
Is it free?
Yes. Completely free with no watermarks, no sign-up required.
Does it work on mobile?
Yes. Works in any modern browser on all devices — no app installation required.