Compressing Photos With Text for Signature Uploads
Text inside photos, like signs or slides, needs a gentler touch. Signature images are simple black-on-white marks, so they can be very small while staying perfectly legible.
Recommended settings for signature uploads
| Setting | Starting point |
|---|---|
| Format | JPEG (WebP where accepted) |
| Width | about 300 px on the long edge |
| Quality | 60 |
| File size | 20 KB or less |
These are practical defaults. If the platform or form you are using publishes its own limits, follow those instead.
Compressing Photos With Text
JPEG tends to create faint ringing around sharp letter edges. Keep quality around 80 to 85 and avoid shrinking below the size at which the text is readable.
If the image is mostly text, consider PNG. For signature uploads, test a quick compression and zoom in on the lettering before you upload.
Step by step with TheCompressJPEG
- Open the compress JPEG to 20 KB tool, or the main compressor for custom settings.
- Drop in your image. Nothing is uploaded; it is processed in your browser.
- Set the maximum width to 300 and the target size to 20 KB.
- Press Compress, check the result and download it.
Quick tips
- Use WebP where it is supported and you control the page.
- Never re-compress an already compressed JPEG if you can avoid it.
- Strip metadata from images you share publicly.
- Always keep the original file and compress a copy.
FAQ
What JPEG quality should I use for e-learning courses?
Quality around 78 keeps photos looking natural while cutting file size substantially.
Will compressing reduce image quality for e-learning courses?
Some detail is removed, but at sensible settings the difference is not visible at normal viewing size.
How do I compress many images for e-learning courses at once?
Drop all of them into the tool together and use Download all to get a single ZIP.
Wrapping up
For signature uploads, the reliable recipe is simple: resize to around 300 pixels, compress at quality 60 or to a 20 KB target, and check the result before you upload. Keep the original so you can always start again.
Related guides
- Compressing Portrait Photos for Signature Uploads
Faces are where viewers notice compression first.
- Compressing Product Photos for Signature Uploads
Product photos must look accurate because people judge the item by them.
- Naming and Organizing Compressed Images for Signature Uploads
Good file names help you, your team and search engines.
- Privacy Tips When Compressing Images for Signature Uploads
Many online compressors upload your images to a server. That is not always necessary.
- Compressing Portrait Photos for Slack Messages
Faces are where viewers notice compression first.
- Naming and Organizing Compressed Images for Cloud Backups
Good file names help you, your team and search engines.