Private images is the core object here; understand the problem it solves before choosing a tool or workflow. Do not upload IDs/contracts/client images to unknown online tools; local compression is safer.
Why it matters
Without the concept, format, permission or compatibility issues are easily misread as tool failures.
Local browser processing still needs protection from malicious extensions.
Step by step
- Back up the original; never overwrite the only copy.
- Confirm the target platform's format, dimensions and size limit.
- Cap the longest side first, then quality; change one variable at a time.
- Compare size and sharpness after compressing, and step back one setting if needed.
- Keep the original until the output is confirmed.
Common mistakes
- Chasing the smallest file and blurring text/edges.
- Converting transparent PNG to JPEG, turning transparency white or black.
- Recompressing the same file and accumulating loss.
- Overwriting the original, so a bad result cannot be undone.
Checklist
- Original backed up.
- Output format/dimensions/size meet the platform.
- Text is readable and transparency is correct.
- Verified in the real page/email/upload field.
- Original kept until confirmed.
Key facts
- Local browser processing still needs protection from malicious extensions.
- Crop unrelated personal information before sharing.
FAQ
What is Private images?
Private images is the core object here; understand the problem it solves before choosing a tool or workflow. Do not upload IDs/contracts/client images to unknown online tools; local compression is safer.
How long does it take?
Usually 1-3 minutes; for intermittent issues, run 30 seconds and retest elsewhere.
Is data uploaded?
Runs locally and does not upload video/audio; extensions may still read the page.
Source: FTC privacy