How Do You Convert a PDF to MOBI?
You convert a PDF to MOBI by adding it to QuickCatPDF's PDF to MOBI converter and clicking Convert to MOBI. The text is rebuilt as a reflowable Kindle e-book, with chapters at the PDF's headings, a table of contents and a cover, so the text fits the Kindle's screen instead of showing tiny fixed pages.
The PDF is converted in your browser and never uploaded. It's free, with no sign-up and no watermark.
How to Convert PDF to MOBI With QuickCatPDF
Converting to MOBI takes four steps.
- Click Select PDF files or drop your PDFs on the page (up to 20).
- Choose where a new chapter starts, and whether to make a cover from page 1.
- Type a range in Pages if you only need part of the PDF.
- Click Convert to MOBI, then download the Kindle book.
What Is MOBI, and Should I Choose AZW3 Instead?
MOBI is the older Kindle e-book format. Every Kindle e-reader ever made can open it, as well as many reading apps. It supports chapters, a table of contents, bold and italic text, tables and pictures, but only simple formatting.
For newer Kindles (2011 onwards), PDF to AZW3 gives better layout, styles and a Kindle table of contents. For the Send to Kindle service, which no longer accepts MOBI, use PDF to EPUB.
How Good Is the Result?
QuickCatPDF rebuilds the PDF's headings, paragraphs, lists, tables and pictures, joins lines broken at the end of each PDF line, and leaves out page numbers and running headers. Pictures are saved as JPEG at Kindle-friendly sizes.
In our test, a 4-page report became a 134 KB MOBI in under a second, with its chapters, cover and picture. It was read back by the eBook reader used on this site's MOBI to PDF tool, with all its text, and opened without errors in an independent Kindle-format unpacker.
PDFs that are mostly running text work best. Magazines and pages with many side-by-side boxes become a single column, and scanned PDFs are read with text recognition first.
How Do I Put the Book on My Kindle?
Connect the Kindle to your computer with a USB cable and copy the MOBI into its documents folder. It appears in the library when you unplug it.
Frequently asked questions
Is PDF to MOBI free?
Yes, free with no sign-up, no watermark and no limit on the number of files.
Is my PDF uploaded?
No, the Kindle book is made in your browser and nothing is sent to a server.
Are pictures included?
Yes, pictures are kept by default; untick Include pictures for a smaller, text-only book.
Can I turn a MOBI back into a PDF?
Yes, use MOBI to PDF. Every other format is on the PDF Converter.
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