Make it fit
Online forms, email and chat apps all have limits: under 100 KB, 600 × 600 pixels, no more than 25 MB. S Converter can hit those limits for you.
A maximum file size
- Open Images, Compress or Video and add your files.
- On the right, switch Quality to Max size.
- Pick a limit: 50 KB to 5 MB for photos, 8 MB to 100 MB for video. Or choose Custom… and type your own.
- Press Convert.
Photos get the best quality that fits under the limit. S Converter only makes the picture smaller in pixels if lowering the quality alone isn't enough. Videos get a bitrate worked out from their length; if the first try lands slightly over, S Converter tries again a little smaller.
If a limit is impossible (for example 1 KB for a large photo), S Converter saves the smallest version it can make and tells you.
The summary above the Convert button shows the limit, for example 3 files · 5 MB → JPG, under 100 KB.
Presets that fit
- Under 100 KB (images): a JPG under 100 KB, for upload forms.
- Email (video): an MP4 under 20 MB, which fits most email services.
These are also on the Quick Convert wheel.
Photos for forms
Visa, passport and exam applications usually want a photo at an exact size. Press Form photo in the One-click row, choose a size, and press Make the photos:
| Choice | Size | File size |
|---|---|---|
| US visa | 600 × 600 px (square) | under 240 KB |
| Passport 35 × 45 mm | 413 × 531 px (at 300 dpi) | under 500 KB |
| 2 × 2 inch | 600 × 600 px | under 500 KB |
| Custom size | your width × height | your limit |
The photo is cropped to the exact size around the face (S Converter looks for the most interesting part of the picture), and saved as a JPG small enough to upload.
The US visa and DV lottery numbers come from the U.S. Department of State: a square JPEG, 600 × 600 pixels, no more than 240 KB.
Tips
- Start from the best original you have. A sharp photo stays sharp at a small size.
- For forms that want a plain background, take the photo against a plain wall; S Converter doesn't change the background.
- Save your own limits as a preset, for example Under 200 KB for a portal you use often.
Related: Convert files · Presets and recipes
This guide is also on GitHub.
Get S Converter
Free, no ads, no account. Images, video, audio, documents, PDFs and archives, all converted on your own PC.
