design tool
Flyer size resizer
Drop a finished flyer and it is laid out as a board of every canvas the flyer builder offers, each tile drawn at its true shape rather than a uniform thumbnail. Tap the picture to say which part must stay in frame, tap the tiles you want, and download them. The ones being enlarged past their own detail are flagged before you send anything to print.
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- Runs on your device, nothing is uploaded
- Free, no sign in
- No watermark, no file limit
How it works
- 1
Drop the flyer
Every canvas renders immediately as a tile drawn at its real shape, so a Twitter header is wide and short and an A0 board is tall and narrow.
- 2
Set the point that must stay in frame
Tap the picture at the top. Every cropped canvas keeps that point in view. Advanced options can also find the busiest part of the picture for you.
- 3
Choose fill or fit
Crop to fill suits a photographic background. Fit the whole design keeps the layout intact and puts a colour, the sampled edge colour or a mirrored background behind it.
- 4
Pick the tiles you want
The whole tile is the button. A tile carrying a warning badge is being enlarged past its own detail and will print soft.
- 5
Download
The button counts the selection and renders each canvas at its full pixel size. Advanced options switches the files to JPEG, which matters for the poster sizes.
A board, not a list
Every canvas is drawn at its own shape and grouped by what it is for, so the differences are visible instead of described. An A4 sheet next to an Instagram story next to a Facebook cover makes it obvious that no single crop serves all three. That is the point. The board is there to show you which of the ten are honestly reachable from the artwork you have, and which need the design laying out again.
Refitting pixels is not redesigning
An A4 flyer is tall and narrow. A Facebook cover is short and wide. There is no crop of the first that is a good version of the second, because the design was composed for a different frame. This tool is the fast answer when the artwork is mostly a photograph or a pattern with generous margins. When the layout is dense, the honest answer is to rebuild it for the new shape, which is what the builder's own size switch does: all 259 of its designs have a layout authored for each size.
Why some tiles carry a warning
A source image has a fixed amount of detail. Filling a 1656 by 2340 poster canvas from a 1200 pixel wide picture means enlarging it more than twice, and enlargement invents pixels rather than finding them. Any tile whose scale goes above 1.15 gets a badge that says so in words and an icon, not just a colour. The print canvases also quote the density the output would land at on real paper, which is the number a printer will ask about.
When bars are the right answer
Fitting the whole design and filling the remainder looks deliberate if the colour comes from the design itself and looks like a mistake if it is default white behind a coloured flyer. The sampled edge option takes the average of the artwork's outer ring, so the result reads as a framed version rather than a botched crop. On a story, where the bars are large, that choice matters more than it does on a square post.
Limits
- This refits pixels. It cannot move text or reflow a layout, so a heavy crop can cut through a headline.
- Enlarging a small image to A0 will look soft, because the detail was never there.
- The A0 sizes are the builder's working canvas at 50 pixels an inch, which is what the app uses on screen.
- Downloads arrive one file at a time, so a browser may ask permission for multiple downloads.
What it does not do
- It does not redesign the layout for a new shape.
- It does not add, move or resize text.
- It does not make a PDF. The builder exports PDF, PNG and JPG, but as RGB images at twice the canvas size, with no bleed, no crop marks and no CMYK.
Questions people ask
Is my flyer uploaded?
No. It is decoded and redrawn on canvases inside your browser, and the page makes no network request after it loads. An unpublished campaign is safe to run through it, which is the usual reason somebody needs ten sizes in a hurry and cannot wait for a design queue.
Why does my headline get cut off?
Because crop to fill covers the new shape, and a tall design cropped to a wide canvas loses the top and the bottom. Tap the picture to move the point that must stay in frame, or switch to fit the whole design, which keeps everything and puts a background behind it instead of cutting.
Can I go from a social post up to A0?
You can, and the tile will tell you it is going to look soft. A 1080 pixel square stretched onto a 1656 pixel poster canvas is being pushed past its detail, and at A0 that is very visible. Start from the largest version of the artwork you have, or rebuild the design at poster size.
Why is the A0 canvas only 1656 pixels wide?
That is the flyer builder's working canvas for A0, kept at 50 pixels an inch so the editor stays responsive with a poster on screen. The builder exports at twice that, 3312 by 4680 pixels, which is about 100 pixels an inch at A0. Ask your printer whether that is enough for the viewing distance before sending it.
What are the dashed guides on the previews?
The area to keep type inside, which differs per canvas because platform interfaces cover different parts of the frame. A story has a large clear zone at the top and bottom, a Facebook cover has the profile picture on the left. They are drawn on the previews only, and the downloads come out clean.
PNG or JPEG?
PNG is lossless and large, which is fine for a square post and unpleasant for a poster canvas. JPEG at high quality is a fraction of the size and no worse for photographic artwork. The choice is in Advanced options and applies to every download, with the file named after the canvas so they stay sorted.
Can I get a PDF for the printer?
Not from here, since these are image files. The flyer builder exports a PDF, but it holds RGB page images at twice the canvas size, with no bleed, crop marks or CMYK. If your printer needs those, take the PDF into print software first. Use this board to decide which sizes are worth producing.
Rebuild this flyer at another size
Take what you made here into flyers.
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Sources
Written and checked by the OneCraft team. Last checked .