Free Competition Submission Exporter
Type in an open call's image rules once (long edge in pixels, file-size limit, format, file names) and export the whole set to match. A photo that is too small is flagged, never enlarged, and every exported file is opened again and measured against the rules. Exports ZIP, JPG, PNG and CSV. Free, with no sign-up, and your picture never leaves your device.
Drop the images for one application
They stay on your device. Nothing is uploaded. Up to 60 images.
Open call rules.Long edge at least, exactly or at most a pixel size; a megabyte limit; JPG or PNG; a DPI label. Saved rules stay on this device.
Never enlarged.A photo smaller than the rule is exported at its own size and flagged, or set on a larger canvas with a border.
Name pattern.File names built from your name and each artwork's title, year, medium and size, with accents and spaces made safe.
Report.Each exported file's pixel size, weight, DPI label, colour space and name, measured and set against the rule.
- Free
- No sign-up
- Runs in your browser: your image never leaves your device
How do you resize an image for an art competition?
To resize an image for an art competition, set the long edge to the pixel size the call asks for, save it in the required format under the file-size limit, and name it as the call specifies. This exporter does that for a whole application at once and measures each file it makes against the rules.
How to use the Competition Submission Exporter
The tool takes 6 steps, all on your device.
Under Open call rules, start from CaFÉ or choose Rules I type in, then set Long edge must be, File size under and Format from the call's own page.
Add the images for one application, or press Try three samples.
Give each artwork its Title, Medium, Size and Year, or paste the rows from a spreadsheet.
Under File names, type your name and a Name pattern such as {Last}_{Title}_{Year}; each row shows the name it will get.
Read each row's export size. A photo under the rule is marked, and A photo smaller than the rule decides whether it is flagged or given a border.
Export. Several images arrive as a ZIP with the report and the image list; the Report tab shows every measurement.
What the Competition Submission Exporter does
The Competition Submission Exporter measures a pass or fail for every file, finds the highest quality that fits, and adds an image list.
A measured pass or fail for every file
The submission exporter opens each file it has made and reads the pixel size from the file's header, counts its bytes, reads its DPI label and checks its name. The report states those measurements beside the call's rules, so a pass is a fact about the file. It is the last of the artwork photo tools a photograph goes through before it is uploaded.
The highest quality that fits
The exporter searches JPEG quality for the highest setting that keeps the file under the limit, with room left for the metadata it adds. If quality alone cannot get there, the pixel size comes down only as far as the rule allows, and the report says so.
Small photos handled honestly
A photo below the minimum fails the long-edge check and a note explains why it was not enlarged. The border option places the photo, unscaled, on a black or white canvas of the required size.
An image list with the files
The image list numbers each artwork with its caption (title, year, medium, size) and its file name, as text and as a spreadsheet file. Titles can be pasted in from a sheet in one go.
Rules you can save and send
The rules are kept in the page address, so a call's settings can be bookmarked or sent to another artist, and saved by name on this device.
Clean files
Each export is a new file. Camera details and GPS position in the original are not copied; your name, a copyright line and the title are written in as standard metadata if you leave that switch on.
How it compares with general batch resizers
Each tool was given the same three images on 1 October 2026, one of them 800 pixels wide, and asked for 1920 pixels on the longest side.
| Feature | This tool | Bulk Resize Photos | BIRME | RedKetchup |
|---|---|---|---|---|
| The 800 px photo | Flagged, left at 800 px | Enlarged to 1920 px | Enlarged to 1920 px | Enlarged to 1920 px |
| Longest side, portrait and landscape together | Yes | Yes | No | Yes |
| How a file-size limit is met | Quality first, then pixels | Fewer pixels, 1.5 MB at most | No size limit | Fewer pixels |
| Pass or fail against the rules | Yes | No | No | No |
| Names from title, year and artist | Yes | No | Original name only | No |
| Image list with captions | Yes | No | No | No |
All four work in the browser without an account.
For artists who apply
Working painters, draughtsmen, students and artists who sell prepare the images an application asks for.
Working painters and draughtsmen
Keep one saved set of rules per juried show and export this year's work to it in a minute.
Students
Meet a degree show or residency portal's size limits without learning an image editor's export dialog.
Artists who sell
Send a gallery a named, numbered set with an image list instead of a folder of IMG files.
What open calls ask for
Most calls state the same few things: a pixel size on the longest side, a file-size limit, a format, and often how to name the files. They state them because a jury sees every image at one size on one screen, and because an upload form rejects what does not fit.
The numbers differ from call to call, so this tool stores none but one. The CaFÉ preset carries what CaFÉ's own guide states: JPG, at least 1200 pixels on the longest side with 1920 or more recommended, under 5 MB. The guide gives no file-name rule. A call hosted on CaFÉ can add its own requirements, so read the call's page as well.
At least, exactly, at most
At least 1200 px means a larger image is welcome: the exporter uses the Export at size when the photo has the pixels and keeps a photo between the two sizes as it is. Exactly fixes the long edge, which leaves no room to shrink a heavy file. At most scales large photos down and leaves smaller ones alone.
Why is a small photo not enlarged?
A small photo is not enlarged because enlarging adds pixels, not detail. An 800-pixel photo stretched to 1200 passes the upload form and looks soft beside sharp entries. The exporter therefore exports it as it is and marks the long-edge check as failed, which is the truth about that file.
The fix is a larger photograph or scan. Where that is not possible, CaFÉ's guide says black borders can be added to make the image larger without compromising quality, and the border option does exactly that.
File size, megabytes and quality
Under 5 MB is read as fewer than 5,000,000 bytes. Some systems count 1,048,576 bytes to the megabyte; the stricter reading passes both.
Exports are sRGB. The browser converts a wide-colour photo, such as one in Display P3, to sRGB when it draws it; in our test in Chromium, the engine of Chrome and Edge, a Display P3 colour of 200, 100, 50 came out as the sRGB values 215, 90, 23 with a small sRGB profile embedded. The report checks whichever profile the file carries. The DPI label is a number in the file's header for calls that ask for one; a jury screen shows pixels, and the label does not change them.
Names a jury can sort
A pattern such as {Last}_{Title}_{Year} gives Nowak_Harbour-at-Dawn_2026.jpg. Accents are folded to plain letters, spaces become hyphens, and two works that would share a name get -2 and -3.
To check or change the rights fields afterwards, open the files in the art metadata editor. For social media sizes rather than juried calls, use the art image resizer.
Further reading
The page below goes further into the ideas the Competition Submission Exporter works with, and opens on the site named beside it.
- Photographing your artwork on Artistic Masterclass (ArtisticMasterclass.com)
Tips from a working artist
From Sujith Puthran, artist and founder: what I actually do at the easel.
I photograph every finished piece at the camera's full size and export down from that; a call's minimum is a floor, not a target.
I name files the way the call asks even when the form would accept anything. A juror sorting forty entries reads the file names.
Why your picture stays on your device
The Submission Export is a program your browser downloads and runs by itself. When you choose a picture, the browser reads it from your files and does the work on your own phone or computer; no copy is sent to this site or to anyone else, and what you export is saved straight from the browser. That is why there is nothing to upload and nothing to sign up for. The privacy page says what the site does collect.
Questions about the Competition Submission Exporter
The 5 questions below cover presets and image counts, then size limits and HEIC photos, then privacy.
Using it
Which calls have presets?
Only one call has a preset: CaFÉ, taken from its published guide and dated in the tool. Every other call's rules are typed in from the call's own page.
How many images can one export hold?
One export can hold 60 images. Photos over 40 megapixels are read at a reduced size to protect the device's memory, and the report notes it.
The rules
What happens when a file cannot get under the size limit?
When a file cannot get under the size limit, it is exported at the lowest quality the tool uses, 50 of 100, and the file-size check fails with a note. That happens with an exact pixel size and a very low limit, and with PNG, which has no quality setting.
Can the tool convert HEIC photos from an iPhone?
Yes, the tool can convert HEIC photos from an iPhone where the browser decodes HEIC, which Safari does. Other browsers show a message asking for a JPG.
Privacy
Does the Competition Submission Exporter upload my images?
No, the Competition Submission Exporter does not upload your images.
- Open-call image rules: callforentry.org/preparing-your-image-files-for-upload · checked 2026-10-01
Set the call's rules, add your images and download a set that has been measured.
Free · No sign-up · Runs in your browser