PDF to EPUB,
cover intact.
Kindle finds a cover through a declaration most converters forget to write, so the book arrives as a grey placeholder. This one writes it, then checks the file before handing it over.
Drop a PDF here, or click to browse.
Converted in this tab. Your file is never uploaded. Requires JavaScript.
How it works
- 01
Drop in your PDF
Choose a file up to 200 MB. It is read inside the browser tab, so nothing is uploaded and there is no queue to wait in.
- 02
Check the cover and the details
A cover is taken from the first page of the PDF, or you can upload your own image. The title, author and language are what your Kindle library will show, so they are editable before you commit.
- 03
Download the EPUB
The finished file is reopened and checked before the download appears. Then send it to your Kindle with Send to Kindle, or copy it across over USB.
Why Kindle shows a grey placeholder
An EPUB can declare its cover twice. The modern EPUB 3 way marks the image in the manifest with a properties="cover-image" attribute. The older EPUB 2 way adds a <meta name="cover" /> element pointing at that image by id.
Kindle reads the older one. A converter that writes only the EPUB 3 declaration produces a file that is technically correct, passes validation, contains your cover image at full quality, and still shows up in your library as a grey rectangle with a filename on it. The image is in there. Nothing is looking for it.
This converter writes both declarations, puts the cover first in the reading order, adds the legacy guide reference that older devices use, and then reopens the finished file to confirm the image is present, decodable, and large enough. If any of that fails, the download is blocked and you are told which part broke, rather than finding out when the book lands on your device.
What this costs: nothing
- Free forever, not free for a trial period.
- No ads, anywhere on the page.
- No account, no email address, no sign-up.
- No payment step when you download, or at any other point.
- No watermark on the file you get back.
- No paid tier, because there is no server bill to cover.
The reason this is credible rather than a promise: the conversion runs on your computer, in your browser. There is no server doing the work, so there is no bill that has to be paid by advertising, by a subscription, or by holding your file until you enter a card.
Compared with upload-based converters
| This converter | Typical upload-based converter | |
|---|---|---|
| Where your file goes | Stays in the browser tab, on your machine | Uploaded to a server you do not control |
| Cover on a Kindle | Both the EPUB 2 and EPUB 3 declarations are written, then verified | Often EPUB 3 only, so Kindle shows a grey placeholder |
| Your own cover image | Upload a JPEG, PNG or WebP | Usually not offered |
| Output checked before you get it | Around forty structural checks, and the download is blocked if the book would break | Typically returned unchecked |
| Cost | Free, with nothing held back | Commonly a free tier with size or daily limits, then a subscription |
| File retention | Nothing is stored, because nothing was sent | Held on their servers, usually deleted on a timer |
Questions
Is it really free?
Yes, and permanently. There are no ads, no accounts, no upload limits behind a paywall, no watermark on the result, and no payment step when you download. There is no paid tier to upsell you to, because there is no server to pay for.
Does my PDF get uploaded anywhere?
No. The conversion runs inside your browser tab, on your own machine. There is no server, no API and no storage bucket. Your file never leaves your device, so there is nothing for anyone to leak, sell or subpoena.
Why does my Kindle show a grey placeholder instead of my cover?
Kindle finds a cover through an older EPUB 2 declaration, a meta element named cover in the package file. Most converters write only the newer EPUB 3 declaration, so the image sits inside the file, correctly listed, and Kindle never looks at it. This converter writes both, then reopens the finished file to confirm the cover is really there.
Can I use my own cover image?
Yes. You can upload a JPEG, PNG or WebP and it becomes the cover, replacing the page rendered from the PDF. Amazon recommends 1600 by 2560 pixels. Smaller images still work, and anything unusually proportioned is flagged rather than cropped, because cropping someone else's artwork is not a decision a converter should make.
Can I change the title, author and filename?
Yes, all three, before you download. The title and author are what your Kindle library displays, and PDFs routinely carry titles like "Microsoft Word - final_v3.docx", so they are a first-class panel rather than an advanced option. The download filename is editable in place too.
How big a file can I convert?
Up to 200 MB. The limit exists because the whole document is held in memory in your browser rather than streamed through a server.
Does it work on scanned PDFs?
Not yet. The converter reads the text layer that a PDF carries, so a scan with no text layer produces an empty book. If you can select and copy text in your PDF reader, it will convert. If you cannot, it needs OCR first, which this tool does not do.
Do images and figures come across?
Not yet. The current version converts text, headings, chapter structure and the cover. Embedded figures are not extracted, so an illustrated textbook is not a good fit today. A text-led book, report or roadmap is.
How do I get the EPUB onto my Kindle?
Use Send to Kindle, at your own Amazon domain followed by /sendtokindle: amazon.in/sendtokindle in India, amazon.com/sendtokindle in the United States, and the same pattern elsewhere. There is also a desktop app, or you can email the file to your device address, or copy it over USB. Amazon accepts EPUB directly now and converts it on their side.
Why convert at all, instead of emailing the PDF to my Kindle?
A PDF has a fixed page size, so a Kindle either shows a whole shrunken page or makes you pan around one. EPUB reflows, which means your font size, margins and line spacing work, along with highlights and dictionary lookups. That is the actual difference.
Are chapters and the table of contents preserved?
Yes, where the PDF has real heading structure to read. Headings are detected from font size and weight, then used to split the book into chapters and build both a navigation document and the older NCX index, so the Kindle menu jumps to chapters rather than page numbers.
How do I know the EPUB is not broken?
Every file is reopened and checked before you download it, against roughly forty structural checks covering the cover declarations, the spine, the navigation document and the metadata. If a problem would break the book on a Kindle, the download is blocked and the reason is shown rather than handing you a file that fails silently.