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Sign a PDF

Draw your signature with the mouse or finger, drop it onto the page exactly where you want, and download a signed PDF. Everything runs in your browser — your document is never uploaded.

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Compress Image to 100KB

Need to reduce a photo to exactly 100KB? Drag your image below, set the quality slider until the output size drops under 100KB, then download instantly.

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Compress JPEG Online

JPEG is the most common photo format on the web, but fresh camera shots can easily weigh 5–10MB.

Compress PNG Online

PNG files are losslessly encoded, so they tend to be much larger than JPEGs.

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Need a favicon.
Frequently asked questions

No. Signing happens entirely in your browser. Your document never leaves your device — no upload, no account, no server.

Use the signature pad to draw with your mouse, trackpad or finger. Clear and redraw until it looks right, then place it on the page.

Yes. Pick the page, then drag and resize the signature box over the page preview to position it precisely before exporting.

It adds a visible handwritten-style signature, which is enough for many everyday documents. For qualified/certified e-signatures with identity verification, use a dedicated e-sign service.