Add a clear, professional watermark to your passport, ID card, driver's license or PDF. Nothing is ever uploaded — everything runs locally in your browser.
Upload an image or PDF, customize the watermark, download.
No technical knowledge required.
Select any photo of your ID card, passport or driver's license — or a PDF. The file is loaded directly into your browser, nothing is sent anywhere.
Enter the purpose of the share, pick a color and adjust the opacity. Choose to export as PNG images or as a watermarked PDF.
Download the watermarked file and send it. The watermark makes the document unusable for any purpose other than the one stated.
No tradeoffs. No fine print.
Kavrylo uses the browser's native Canvas API and JavaScript PDF libraries. No server receives your documents — not even for a millisecond.
Upload a multi-page PDF and export the result as a watermarked PDF or as individual PNG images. All pages are processed automatically.
An invisible watermark is useless. Kavrylo renders a bold, repeating overlay that cannot be overlooked or easily cropped out, while keeping the document legible.
Choose the text, color, opacity, size and layout of your watermark. Add today's date automatically to tie the document to a specific request or recipient.
No. Everything runs locally in your browser. No file, no image, no metadata is ever transmitted. You can use Kavrylo offline after the page has loaded.
Yes. Kavrylo processes every page of your PDF automatically. You can export the result as a watermarked PDF (all pages in one file) or as individual PNG images — one per page.
When you share a scan of your passport or ID online — for a rental, a bank, insurance, etc. — the recipient could theoretically reuse it for another purpose. A watermark stating the intended use and date makes the document useless outside that specific context.
No. The watermark is designed to be clearly visible while keeping the underlying document fully legible. The opacity slider lets you find the right balance.
Yes, Kavrylo is completely free with no usage limits, no ads and no subscriptions.