Image tool
Resize Image
Set a photo to the exact pixel size a platform or form expects, so a post is not cropped and an ID photo is not rejected for being the wrong dimensions.
1. Choose an image
The image stays in this tab. Nothing is uploaded.
Choose an image, or drop one here
You can also paste an image with Ctrl or Command and V
JPG, PNG, or WebP
Presets
Choose an image to begin. Nothing is uploaded.
2. Result
The resized image will appear here.
Platform sizes change. The presets here are the widely used dimensions, but each network edits its own requirements from time to time. If a post looks wrong after uploading, check the platform’s own current guidance and type the numbers in yourself. Nothing is resized beyond what you ask for.
How to get the size right
Match the shape, not just the size
An image that is the right pixel count but the wrong shape gets cropped by the app. Use the aspect ratio tool as well if you need an exact shape.
Upload the largest sensible version
Most platforms compress again on their side. A clean 1080 pixel image survives that better than a heavily compressed one.
Leave room for text
If a caption or handle will sit on the image, the 4:5 and 9:16 presets leave more usable space than a square.
Passport and ID photo sizes
Philippine passport: 35 × 45 mm
At 300 dpi that is 413 × 531 pixels. Choose the “PH passport 35×45” preset, then download a JPG. The DFA also asks for a plain white background and a recent, front-facing photo. See the passport photo size guide for other countries.
2 × 2 inch ID photo
51 × 51 mm, or 600 × 600 pixels at 300 dpi. This is the size many Philippine schools, visa forms, and government IDs ask for, even though it is not the passport size.
1 × 1 inch ID photo
25 × 25 mm, or 300 × 300 pixels at 300 dpi. Some school and company IDs still use it. Check the form before choosing it over 2 × 2.
US passport: 2 × 2 inches
The US uses the same 600 × 600 pixel output as a 2 × 2 ID photo, but the head has to fill a specific part of the frame. The size alone does not guarantee acceptance.
Schengen and China visa sizes
Schengen countries generally use 35 × 45 mm (413 × 531 pixels). China asks for 33 × 48 mm (390 × 567 pixels). Both are in the preset list.
File size is a separate check
A correctly sized photo can still be rejected for being too many kilobytes. If the form caps the upload, run the result through the image compressor and set a target size.
Passport and ID photo sizes in pixels
A form that asks for a photo in millimetres is really asking for a pixel count at a particular print resolution. At 300 dpi, the standard for passport and ID printing, 35 × 45 mm is 413 × 531 pixels, 2 × 2 inches is 600 × 600 pixels, and 1 × 1 inch is 300 × 300 pixels. The presets above use those numbers.
The Philippine passport photo is 35 × 45 mm, not 2 × 2 inches. Many Philippine schools and government forms do ask for 2 × 2, which is why both are in the list. Read the form you are actually submitting rather than assuming one size covers every ID.
2 × 2 versus 1 × 1
2 × 2 inches is the larger of the two and the one most often requested for visas, passports, and school records. 1 × 1 inch is smaller and still appears on some school and company IDs. A 1 × 1 photo made by shrinking a 2 × 2 file will look soft, so start from the largest original you have and resize down once.
Why a phone photo can still be rejected
Resizing fixes the dimensions, not the photograph. A passport or ID photo also needs a plain light background, even lighting, a front-facing neutral expression, no glasses, and no beauty filter. If the original has a shadow behind the head or a patterned background, resizing it to the right number will not make it acceptable.
After resizing, check the file size
Many application forms have two limits: dimensions and kilobytes. The resizer controls the dimensions. If the downloaded file is still too large, open the image compressor, set the target size the form allows, and compress the resized file. Doing it in that order keeps the dimensions exact.
What this tool does and does not give you
This tool reshapes and resizes an image to the exact pixel dimensions a platform expects, and downloads it as a JPG or a PNG. Two things are worth knowing before you rely on it for a particular job.
The download quality is fixed, not adjustable
Images are written out at a fixed quality of 0.92. There is no slider, and there is not one on purpose: social platforms re-encode every upload anyway, so a heavier file buys you nothing. If your actual problem is that a file is too large to send, use the Image Compressor instead, which does expose a quality control and will report the size it achieved.
Resizing does not make the picture better
Reducing an image to 1080 pixels on its longest edge discards the rest. That is the point, but it means the same file cannot be used again for a print job later. Keep the original.
Get the shape right before the size
If the shape is wrong the platform will crop your upload itself, and usually not around your subject. Reshaping first, then sizing, then compressing in that order means each step only pays for itself once.
Platform sizes are not stable, and other lists are not authoritative
Social networks change their recommended dimensions fairly regularly, and plenty of blog posts quoting sizes are years out of date. The number to trust is the one in the platform’s own help or developer documentation, checked at the time you are uploading.
Check the actual download, not the setting you chose
After the download, open the file and confirm its dimensions. A source image smaller than the target means the result will be padded or the shape will not match, and it is easier to notice that from the finished file than from the settings.
Sizing an image once for several destinations
Each platform publishes its own recommended dimensions, and they change without much announcement, so a preset is a starting point rather than a rule. What stays constant is the shape: profile images are square, feed images are roughly square to portrait, and banners and headers are wide.
Resizing up is where quality is lost. An image can be reduced without much visible damage, but enlarging it makes the software invent detail that was never captured, and the result looks soft. Start from the largest version you have rather than from one you already resized down.
Keep the subject away from the edges. Platforms often crop differently on different devices, and the same image can lose its outer margins when shown in a narrow column on a phone. Composing with a little room on every side means the crop has something safe to remove.
Save the full-size original. Once an image has been resized down for one destination, using it as the source for the next one compounds the loss, so keep the original and work from it each time.
Further reading: Passport photo sizes by country
Common questions
What sizes can I set?
Any width and height in pixels, so you are not locked to the presets. The preset list covers the common social sizes plus Philippine passport (35 by 45 mm), 2 by 2 and 1 by 1 ID photos, US passport, Schengen, and China visa sizes.
Does it crop or stretch the image?
Neither. The photo is scaled to fit inside the exact width and height you asked for, then centred on a white background. If the source shape does not match the target shape, white bars appear at the sides or top and bottom. That keeps faces and text in proportion instead of distorting them.
Which passport and ID sizes are included?
Philippine passport 35 by 45 mm (413 by 531 pixels), 2 by 2 inch ID (600 by 600), 1 by 1 inch ID (300 by 300), US passport (600 by 600), Schengen 35 by 45 mm (413 by 531), and China visa 33 by 48 mm (390 by 567). All assume 300 dpi, the usual print resolution for these forms.
Is a 413 by 531 image the same as 35 by 45 mm?
At 300 dpi, yes. The millimetre measurement is a print size, and 35 by 45 mm at 300 dots per inch works out to 413 by 531 pixels. Upload forms usually check the pixel count rather than a DPI value, so the preset gives them the number they expect.
JPG or PNG?
JPG is the right choice for photographs, because the compression handles gradients and texture without visible artefacts. PNG is lossless and suits anything with sharp edges, flat colour, transparency or text — a logo, a screenshot, a diagram — at the cost of a much larger file.
Is my image uploaded?
No. Resizing happens on a canvas in this tab and your file is never written to or sent anywhere.
Will it enlarge a small image?
It can, and the result will look soft, because enlarging adds no detail that was not in the original. You get the pixel dimensions you asked for either way — if quality matters, start from the largest version you have.