1Upload your PNG images and wait for the preview to appear.
2Pick a crop preset: 1:1, 16:9 or 4:3 cuts the largest centred area of that shape, and Free Crop keeps the whole picture.
3Start the crop and wait for the result.
4Download the cropped PNG file, with everything outside the frame discarded.
Crop PNG FAQ
Can I crop several files to the same region at once?
+
Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.
Anything specific to PNG worth knowing before I crop?
+
Yes — there is no quality slider to get wrong — a PNG round-trips bit-exactly, so the only thing edits cost you is file size. That is the sort of detail that only shows up after you have overwritten the original.
What is the most common mistake when cropping PNG images?
+
Cropping before resizing. Crop first from the full-resolution original, then resize the result — doing it the other way round means the region you keep has already lost detail it did not need to lose.
Is there a file size limit on Crop PNG?
+
Yes: free accounts process images up to 5 MB each; lossless sources hit that ceiling sooner than photographs do, because nothing has been thrown away yet. If you are over it, converting to PNG first is often enough on its own — a BMP is routinely ten to twenty times the size of the identical image as PNG.
Can I run Crop PNG on several PNG images at once?
+
Yes — upload the set and they process in parallel under one set of settings. Lossless files are larger, so a big batch is bound by your upload speed rather than by the processing itself.
Why does a EPUB site host Crop PNG?
+
EPUB.to is built around the open eBook format — XHTML in a zip, reflowable by design, and readable on hardware nobody has thought about the layout for. A book is a zip full of markup, images and fonts, so almost every job people bring to an eBook site is really a job on one of those things. Crop PNG runs on the same upload and the same account as the conversions because that is where it is needed.
What should I do with the result once Crop PNG is finished?
+
The converter on this site moves books between EPUB, MOBI, AZW3, PDF and DOCX, so a title ends up on whatever hardware is actually going to read it. Doing that after Crop PNG means the conversion is made from the version you settled on, not from the one you were still fixing.
Is Crop PNG here the same tool the sibling sites run?
+
The engines are shared — the same toolchain, the same workers, the same limits. What a EPUB site adds is a view on reflow: which of these operations a reflowable book genuinely supports, and which ones only make sense on the fixed-layout media inside it. It also starts from one fact about the format this site is named after: the book is a zip of XHTML with a manifest, so the text costs almost nothing and every decision that matters is about the embedded images and font subsets.
Do I need an account, and does anything get kept?
+
No account is needed. Uploads and results are kept for about 24 hours, which leaves time to download the result, and are then deleted automatically; nobody reads, lists or indexes them. Several files in one job need a paid plan.
