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 PNG files.
EPUB to PNG Conversion FAQ
How do I extract the cover from an EPUB file as PNG?
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Upload the EPUB and the converter detects the cover image (usually flagged in the OPF as `cover-image`) and returns it as a PNG. By default we serve the cover at its embedded resolution; the advanced "resize" option lets you target a specific width like 400×600 for a thumbnail grid.
Will the PNG open directly in a browser?
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Yes, and the EPUB would not have. Browsers ship a decoder for PNG and none for EPUB, so an EPUB link forces a download while a PNG renders inline. That is usually the deciding factor when the file is going onto a web page rather than into an application. PNG is the right choice for screenshots, logos, line art and anything with hard edges or transparency — no ringing, no colour banding.
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.
Does the PNG output support transparency?
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The format does, but the source has no alpha to give it — video frames and rendered pages are fully opaque by nature, so every pixel arrives solid. The alpha channel is still useful afterwards: it means you can cut a subject out of the PNG later without changing format again.
How big will the PNG files be?
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Larger than you might expect, because PNG 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. PNG uses DEFLATE compression over filtered scanlines, so every pixel survives exactly, plus a full 8-bit alpha channel.
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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Yes — the page-range option takes `1-5`, `1,3,5` or `all`, so a single chapter, an appendix or just the cover can be extracted without processing the rest. On a long document that is the difference between a handful of files and several hundred.
Can I render every page of the EPUB as a PNG?
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Yes — switch the advanced option from "cover only" to "all pages" and we rasterize each EPUB page to a PNG at the chosen DPI, then bundle them in a zip. Reflowable EPUB pages render at a fixed page size (A5 / 6×9 / custom) before rasterization.
At what resolution does the extracted PNG come out?
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Default is 1600×2400 (high-res cover suitable for retailer upload). Advanced options expose 600×900 (web thumbnail), 1200×1800 (Kindle store cover), 1600×2400 (Apple Books / Kobo), and custom dimensions for ad creatives.
Will the PNG keep the EPUB cover color profile?
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Yes — ICC profile embedded in the EPUB cover (if any) is preserved into the PNG. Most retailer-uploaded ebook covers ship as sRGB, which the PNG keeps. For print-ready CMYK output, use a separate /image-to-cmyk/ step after extraction.
Can I extract specific pages of the EPUB as PNG, not just the cover?
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Yes — the page-range advanced option accepts inputs like `1,3,5` or `10-15` to pick which rendered EPUB pages get turned into PNG files. Useful for grabbing illustrations or pull-quotes for marketing.
Why is my extracted PNG cover blurry or low-res?
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The EPUB contained a low-resolution cover. Many older ebooks ship with 600×900 or smaller cover JPGs — upscaling makes them softer, not sharper. For marketing assets, source the high-res cover from the publisher rather than upscaling the in-book copy.
