Is my file uploaded when converting EPUB to PDF?

No. The conversion runs entirely in your browser. The file never leaves your device, there is no server to upload to, and the page works offline once loaded.

Is EPUB to PDF conversion free?

Yes, with no account, no watermark and no file limit per day. frogConvert is open source and there is no server cost to recover, because your device does the work.

How large a file can I convert?

Up to 2 GB for a single file, 500 MB total per batch, and 300 files at once. The practical limit is your device's memory, since everything is processed locally.

Convert EPUB to PDF

Converts a reflowable e-book to fixed pages.

Convert EPUB to PDF →

Runs on: a 3-step chain of local converters
Steps: 3 steps, chained automatically
Input: .epub · application/epub+zip
Output: .pdf · application/pdf
Uploads: None. The file never leaves your device.

What to expect

EPUB has no pages, so pagination is invented. This trades the format's main advantage, text that adapts to the reader's screen, for a fixed layout.

Why convert EPUB without uploading

Most online converters take your file, send it to their servers, convert it there and hand back a download link. That means your document sits on someone else's disk, subject to their retention policy and their breaches. It also means you cannot use them offline, and cannot use them at all for anything confidential.

frogConvert does the conversion in the page itself, with the conversion engines compiled to WebAssembly. There is no upload step because there is no server. You can disconnect from the network and it still works.

About the formats

EPUB

An e-book format that is essentially zipped HTML and CSS. Its text reflows to the reader's screen and font size, so it has no fixed pages to preserve. More about EPUB files.

PDF

Portable Document Format fixes text, fonts and images to an exact page layout, so a PDF looks the same everywhere it opens. That fidelity is also why it resists editing: a PDF stores positioned glyphs, not paragraphs. More about PDF files.

Common questions

Is my file uploaded when converting EPUB to PDF?: No. The conversion runs entirely in your browser. The file never leaves your device, there is no server to upload to, and the page works offline once loaded.
Is EPUB to PDF conversion free?: Yes, with no account, no watermark and no file limit per day. frogConvert is open source and there is no server cost to recover, because your device does the work.
How large a file can I convert?: Up to 2 GB for a single file, 500 MB total per batch, and 300 files at once. The practical limit is your device's memory, since everything is processed locally.
What is lost converting EPUB to PDF?: EPUB has no pages, so pagination is invented. This trades the format's main advantage, text that adapts to the reader's screen, for a fixed layout.