fox tools
Try it with sample files
These practice images were made by Fox Tools. Download them, then select them in the tool. They contain no personal information or real photographs.
Download practice image · PNG · 1800 × 12001. Separate the three upload requirements
“900 × 900 pixels, JPG, under 500 KB” contains three separate requirements. Pixels describe the width and height; JPG is the encoding format; KB measures the amount of stored data. Making an image square does not automatically bring it under a file-size limit.
The dimensions and limit in this guide are practice requirements, not a specification for any particular application. Check the receiving site first. Passport or application photos may also have rules about the background, face size or composition that a pixel resize alone cannot satisfy.
2. Decide between cropping and padding
The sample below is 1800 × 1200 pixels. Setting only its width to 900 preserves the ratio and produces 900 × 600 pixels. For a square, choose Width × Height, enter 900 for both values, and then choose how the photo fits.
Center crop removes 300 pixels from each side of the original, then reduces the remaining 1200 × 1200 area to 900 × 900. Padding reduces the entire photo to 900 × 600 and adds 150 pixels above and below. Use padding when objects or text near the edges must remain visible.
| Setting | Saved dimensions | What changes |
|---|---|---|
| Width 900 · preserve ratio | 900 × 600px | Not square |
| 900 × 900 · center crop | 900 × 900px | 300 original pixels removed on each side |
| 900 × 900 · padding | 900 × 900px | 150px padding above and below |
3. Fix the dimensions, then set the size budget
JPG is an option for an ordinary photograph when transparency is not required. Consider PNG for a transparent logo or sharp text, but it can produce a larger file and does not use a quality slider in this tool. Renaming an extension does not convert the encoded image.
- Download the sample and select it in the image editor.
- Turn off Keep original dimensions. Choose Width × Height, set both values to 900 and select padding or center crop.
- Continue to the format step, select JPG and check the background color. Enter 500 in the target size field.
- Open Advanced compression and keep additional shrinking disabled if the dimensions must stay exactly 900 × 900. Run all files from the final review step.
4. Know what to change if processing fails
Here, 500 KB means 500,000 bytes. A detailed photograph may not fit within that limit at the required dimensions and minimum quality. A failed result means the requested conditions were not met; it is not a successful submission file.
Keep mandatory dimensions fixed and try a slightly lower minimum quality. If the destination only accepts PNG, changing to JPG is not a workaround: check whether its size requirements allow any flexibility. If upscaling protection prevents a larger square, use a larger original or decide whether the loss of sharpness from enlargement is acceptable.
5. Inspect the downloaded file
Check the saved file’s properties for 900 × 900 pixels, the actual format and the number of bytes. Open the file to check for clipped text or faces. Zoom in on edges and backgrounds to spot visible compression damage.
A single result downloads directly as an image; multiple results can be packaged as a ZIP. Check the name and save location so you submit the output, not the original or archive. For another edit, start from the original rather than repeatedly compressing an already compressed result.
Before you finish
- Check dimensions, file format and byte size separately
- Keep important subjects and text inside the frame
- Open the successful output before submitting it