How to use this tool
Keep the source width, height, and JPG, PNG, or WebP format while adjusting quality where supported.
- 1Choose a clear JPG, PNG, or WebP signature image.
- 2Select the maximum file size.
- 3Create the file and review its actual size and legibility.
Best for
Digital documents, email attachments, and uploads with a file-size limit.
Privacy
Files are processed locally in this browser for this tool. The original files stay unchanged, and file names or image contents are not included in tool analytics. Read our privacy policy
Limitations
- The tool does not change dimensions or inflate the file to reach a minimum size.
- PNG size cannot be tuned through a lossy quality setting; limits may be unattainable.
- A result that misses the requested byte limit is reported honestly.
Questions
How do I use resize signature image by file size?
Choose a clear JPG, PNG, or WebP signature image. Select the maximum file size. Create the file and review its actual size and legibility.
What format will I download?
Editing keeps the source JPG, PNG, or WebP format in the downloaded bytes, MIME type, and filename extension. AVIF input is rejected with an actionable conversion message.
Are my files uploaded?
No. This tool processes the selected files locally in your browser. Processing speed and format support depend on your device and browser.
Can I change the original file?
No. The tool creates a separate downloadable result; your source file remains unchanged.
Can I use this tool on my phone?
Yes, in a current mobile browser. Large images or batches may take longer and use more memory on a phone, so reduce the batch or image size if processing stops.
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