MOBI to PDF Converter

MOBI to PDF Converter

MOBI is the ebook format created by Mobipocket SA, a French company incorporated in March 2000; Amazon bought Mobipocket in 2005 and permanently shut down the Mobipocket website and servers on 31 October 2016. Files in that format still sit in a lot of personal libraries, and increasingly little modern software wants to open them. Converting to PDF turns a reflowable ebook into fixed pages that open in any browser, phone, reader or print queue — at the cost of the adjustable text an ebook reader gives you.

MOBI Format at a Glance

What the PDF Output Looks Like

The ebook engine behind this page lays the book out with a fixed set of page parameters. Knowing them up front saves you a round of surprises:

How to Convert MOBI to PDF

1. Upload Your MOBI File: Drag the .mobi onto the page or click "+ Add Files" to browse. Several books can be queued at once and each is converted to its own PDF.
2. Confirm PDF as the Output Format: The PDF output chip is already selected on this page, so there is nothing to change unless you meant a different target format.
3. Leave Compression Type on Screen (Best): The MOBI-to-PDF route goes through our ebook layout engine rather than a PDF re-compression pass, so this selector does not reshape the output — leave it alone and use a dedicated compression step afterwards if the file is too big.
4. Convert and Download: Click Convert and save the PDF. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours. No sign-up, no watermark.

Frequently Asked Questions

What page size will my PDF be?

US Letter, 8.5 × 11 inches, with half-inch margins on every side and a 14-point base font size. This is worth knowing if you are in a region where A4 is standard: printing a Letter-sized PDF on A4 works, but your printer will either scale it slightly or leave a wider bottom margin. There is no page-size selector on this page, so if the exact trim size matters, set it when you print rather than expecting the converter to change it.

Can I convert a DRM-protected Kindle or Mobipocket book?

No. If the MOBI is encrypted with DRM, the converter cannot read the text at all — the conversion fails or produces an empty document. That is a hard technical and legal boundary, not a setting to toggle. DRM-free files convert normally: your own exports, public-domain titles, DRM-free store purchases, and books you assembled yourself.

Will the text still reflow after I convert?

No, and that is the whole trade. MOBI stores text that rewraps to any screen and font size; a PDF page is frozen at a fixed size, so making the text bigger means zooming the whole page. If reflow is what you actually want — reading on a phone, a Kobo, or a Kindle app — convert MOBI to EPUB instead and keep the adjustable layout.

Does the Compression Type selector change my PDF?

Not on this conversion. The Screen / Ebook / Default / Prepress / Printer list is our shared PDF quality control, and it drives the PDF re-compression stage used elsewhere on the site; MOBI-to-PDF goes through the ebook layout engine instead, which builds the pages directly. If the resulting PDF is larger than you want, run it through Compress PDF afterwards, where those presets do take effect.

Do images, the cover, and the table of contents survive?

Yes. The cover is carried over with its aspect ratio preserved, embedded images are placed inline in reading order, and the book's navigation is used to build the document structure. What changes is pagination: content that scrolled continuously in a reader now breaks across fixed pages, so an image can land on the page after the paragraph that introduces it. Text-led novels come through cleanly; heavily designed or illustration-led titles need a proof read.

Is the PDF text searchable, or just pictures of pages?

Real text. The pages are typeset from the book's own markup, so the output is selectable, searchable, and copy-and-pasteable, and screen readers can read it. This is a meaningful difference from PDFs produced by scanning a printed book, which are page images unless someone has run OCR over them.

Why is MOBI being retired?

Amazon has been steadily narrowing where MOBI is accepted. The Mobipocket site and servers were shut down on 31 October 2016, and Amazon's Kindle Direct Publishing help now states that "effective March 2025, we will no longer accept MOBI files for fixed-layout eBooks." Existing MOBI files in a Kindle library still open, but the format is not where new Kindle tooling is going — which is exactly why people end up converting an old shelf of .mobi files into something durable.

Should I convert to PDF or to EPUB?

Choose PDF when the page needs to be fixed: printing, annotating in a PDF app, submitting a document, or handing a file to someone with no ebook reader at all. Choose EPUB when the file is for reading, since EPUB is reflowable like the original MOBI and is what current ebook readers expect. Converting the same MOBI both ways is perfectly reasonable — one to read, one to print.

Are page numbers printed on the pages?

No. We do not add page numbers during conversion, so the pages carry only the book's own content; your PDF reader supplies its own page counter in the toolbar. If you need printed folios, add them in a PDF editor after conversion.

What happens to my file after the conversion?

Your MOBI is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared or made public. We render every book to US Letter pages with half-inch margins and a 14-point base font; the values are fixed for this conversion, so two runs of the same file produce the same layout.