Step 1: Drop your EPUB files using the button above or by deposit and leave.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Receive your converted BMP files.
EPUB to BMP Conversion FAQ
What does the EPUB to BMP converter produce?
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It lays out the whole EPUB as pages, the way the PDF version of the book would look, and turns every page into its own BMP image, starting with the cover when the book has one. A full book therefore gives one image per page, not just the cover. This page has no settings for choosing pages, size or quality.
How are the pages of a reflowable book turned into fixed images?
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By rendering them at a chosen page size first, because a reflowable book has no inherent pages — the reader creates them from screen width and font size. The converter picks a standard page geometry, lays the text out onto it, and renders each resulting page as one image. Change the page size and you get a different number of images from the same book.
How big will the BMP files be?
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Larger than you might expect, because BMP keeps every pixel exactly rather than approximating. A 1080p still lands around 2-5 MB and a 4K still around 6-15 MB, so a long extraction run adds up quickly. That is the right trade when the images feed further processing, and the wrong one when they are going straight onto a web page. BMP usually stores completely uncompressed pixel rows with a small header, which is why it is so simple to parse.
Why does my EPUB file refuse to convert?
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DRM, in almost every case. A protected EPUB is encrypted and tied to an account, and no converter can decrypt it — ours included. Files you created yourself, or bought from a DRM-free store, convert without any trouble at all. EPUB has no fixed pagination, so page numbers are meaningless, and complex layout — tables, equations, multi-column — degrades badly.
Can I convert only part of the EPUB instead of all of it?
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No. There is no page setting for EPUB files, so every page is rendered as its own BMP and you keep the ones you need. If you only want the first page, convert the EPUB to PDF and then use the PDF to BMP converter, whose Pages menu offers First page only.
Do I get one image per page?
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Yes. Each page renders as its own BMP file, numbered in page order, so a one-page document gives a single BMP and a longer one gives one image per page.
Can I render every page of the EPUB as a BMP?
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Yes, every page is converted by default. The book is laid out on US Letter pages first, and each page becomes a separate BMP, listed as its own download. A paid plan adds one ZIP download with all the pages.
At what resolution does the extracted BMP come out?
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The resolution is fixed. As JPG or PNG, each page comes out 1275 by 1650 pixels, which is a US Letter page at 150 DPI, and other image formats can come out at a different size. The cover is drawn onto a page rather than copied out of the EPUB, so it is not delivered at its original resolution.
Will the BMP keep the EPUB cover color profile?
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No. Pages, the cover included, are rendered as standard RGB images, and a color profile attached to the original cover picture is not carried over. epub.to has no CMYK conversion, so prepare print colors in an image editor.
Can I convert only some pages of the EPUB to BMP?
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Not on this page: the converter always turns every page into an image. Each page is listed as its own download, so you can download just the pages you need.
Why is my extracted BMP cover blurry or low-res?
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The cover is drawn onto a page and then turned into an image at a fixed resolution, so it is not a copy of the original cover file. A small cover picture in the EPUB also looks soft once it is enlarged to fill the page. For a sharp cover, use the original artwork, or open the EPUB in an ebook editor such as Calibre and save the cover image from there.
What about transparency in the BMP?
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The images are made from whole book pages, so transparent areas in the cover picture show the page behind them instead of staying transparent.
