Resize for Email signature logo
Drop an image and choose which part to keep. BriskFile sizes it to 300 × 100 on your own device.
A email signature logo should be 300 × 100 pixels. Outlook ignores CSS sizing on images in signatures, so the file itself must be the display size. PNG because most signature logos need transparency.
Drop an image here
It will be sized to 300 × 100.
or drop a folder here, or paste an image with Ctrl + V
Nothing is uploaded. Your files are read by this page and processed by your own processor. Open the Network tab and watch — you will not see them leave.
Why that size
Outlook ignores CSS sizing on images in signatures, so the file itself must be the display size. PNG because most signature logos need transparency.
How BriskFile crops
The image is scaled until it covers 300 × 100, then the overflow is trimmed — so the aspect ratio is never distorted. By default the trim is centred. Open Crop & rotate and the box is locked to this shape, so you choose which part survives rather than hoping the middle was right.
BriskFile will not enlarge an image beyond its original size unless the target demands an exact size, as print and document formats do. Scaling up invents detail that was never captured, and it always looks worse than leaving it alone.
Other work sizes
Questions
What size should a email signature logo be?
300 × 100 pixels. Outlook ignores CSS sizing on images in signatures, so the file itself must be the display size. PNG because most signature logos need transparency.
Will my image be stretched?
No. BriskFile scales to fill the target and trims the overflow, keeping the aspect ratio. Open Crop & rotate to choose which part is kept instead of accepting the centre.
Is my image uploaded?
No. The resize runs in your browser using your own processor. Nothing is sent anywhere, which you can confirm in the Network tab.
What BriskFile will not do to you
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Your files never leave your device
Every conversion runs in your browser. Open DevTools, watch the Network tab, and you will see no upload — because there is not one.
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No account, no email, no watermark
Nothing to sign up for and nothing stamped on your images. There is no step between choosing a file and getting it back.
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No limits at the download button
No daily cap, no file counter, no "upgrade to download". If the tool starts a job, it finishes it.
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Checkable, not just claimed
Open the Network tab and convert something — nothing goes out. Or load the page, disconnect, and watch it keep working: the tool is already on your machine, and your file never leaves it.