<!DOCTYPE html>
<html lang="en">
<head>
<title>Open Signature Generator</title>
<meta name="Open Signature Generator" />
<meta name="description" content="Generate and verify document signatures for free!" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1" />
<!-- Add critical layout CSS inline to prevent layout shift -->
<style>
.hidden {
display: none !important;
}
body {
margin: 0;
padding: 0;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
min-height: 100vh;
}
#document-container {
width: 70%;
max-width: 600px;
margin: 100px auto 20px auto;
padding: 40px;
}
#title-container {
position: absolute;
width: 100%;
top: 20px;
text-align: center;
}
</style>
</head>
<body>
<div id="title-container">
<h1>
Open Signature Generator
</h1>
</div>
<div id="document-container">
<div id="loading-spinner" class="loading">Loading...</div>
<img id="signature-image" style="max-width: 100%; margin-bottom: 20px;">
<div id="verification-info"></div>
</div>
<div class="button-container"></div>
<a href="/" class="button">Go to Open Signature Generator!</a>
</div>
<div id="animated-background">
<svg viewBox="0 0 100 100"></svg>
</div>
</body>
<script>
const animatedBackground = document.getElementById('animated-background');
function stopAnimations() {
const animations = animatedBackground.querySelectorAll('animate, animateTransform');
animations.forEach(animation => {
animation.style.setProperty('animation-play-state', 'paused');
});
}
// Modify your initialization code
document.addEventListener('DOMContentLoaded', () => {
// Extract the signature hash from the URL
let url = window.location.href;
let hash = url.split('/v/')[1];
let image_url = `/images/${hash}.png`;
// Set the image source
const signatureImage = document.getElementById('signature-image');
const loadingSpinner = document.getElementById('loading-spinner');
signatureImage.onload = function() {
loadingSpinner.style.display = 'none';
signatureImage.style.opacity = 1;
};
signatureImage.onerror = function() {
loadingSpinner.textContent = 'Error loading signature image';
loadingSpinner.style.display = 'none';
};
signatureImage.src = image_url;
// Fetch and display verification data
fetch(`/verify/${hash}`)
.then(response => response.json())
.then(data => {
// Create a Date object from the time int and the timezone
const time = new Date(data.time * 1000);
const timezone_offset_minutes = data.timezone;
let timezone_string = "";
if (timezone_offset_minutes > 0) {
timezone_string = "UTC +" + Math.floor(timezone_offset_minutes/60) + ":" + String(Math.floor(timezone_offset_minutes%60)).padStart(2, '0');
} else {
timezone_string = "UTC " + Math.floor(timezone_offset_minutes/60) + ":" + String(Math.floor(timezone_offset_minutes%60)).padStart(2, '0');
}
if (data.invert) {
document.getElementById('signature-image').classList.add('invert');
}
const verificationInfo = document.getElementById('verification-info');
verificationInfo.innerHTML = `
<h3>Signature Details</h3>
<p><strong>Created:</strong> ${time.toLocaleString()}</p>
<p><strong>Creator Information:</strong>
<ul>
<li><strong>Signed Name:</strong> ${data.name}</li>
<li><strong>Signing Browser Timezone:</strong> ${timezone_string}</li>
<li><strong>IP Address:</strong> ${data.identity.ip}</li>
<li><strong>Approximate Physical Address:</strong> ${data.identity.address}</li>
<li><strong>Approximate GPS Location:</strong> ${data.identity.latlon}</li>
<li><strong>Internet Service Provider:</strong> ${data.identity.provider}</li>
<li><strong>Browser Information:</strong> ${data.identity.useragent}</li>
</ul>
</p>
${data.message ? `<p><strong>Message:</strong> ${data.message}</p>` : ''}
`;
verificationInfo.style.color = '#333';
})
.catch(error => {
const verificationInfo = document.getElementById('verification-info');
verificationInfo.innerHTML = `<p style="color: red">Error loading signature verification data.</p>`;
console.error('Error:', error);
});
// Stop animations after 5 minutes to save resources
setTimeout(stopAnimations, 300 * 1000);
});
</script>
<style>
body {
background-color: #000000;
margin: 0;
padding: 0;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
min-height: 100vh;
font-family: Arial, sans-serif;
}
#title-container {
position: absolute;
width: 100%;
top: 20px;
z-index: 2;
text-align: center;
}
#title-container h1 {
font-size: clamp(24px, calc(6vw + 8px), 64px);
margin-top: 20px;
color: white;
text-shadow: 5px 5px 10px rgba(0, 0, 0, 0.7);
}
#document-container {
background-color: rgb(236, 236, 234);
width: 70%;
max-width: 600px;
margin: 100px auto 20px auto;
padding: 40px;
border-radius: 8px;
box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
position: relative;
z-index: 1;
overflow: hidden;
}
#signature-image {
border-radius: 1px;
border: 1px solid #000000;
}
.invert {
background-color: #000000;
}
#animated-background {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: -1;
overflow: clip;
}
@property --a {
syntax: '<color>';
inherits: false;
initial-value: #453f53;
}
@property --b {
syntax: '<color>';
inherits: false;
initial-value: #fff;
}
@property --c {
syntax: '<color>';
inherits: false;
initial-value: #777;
}
#animated-background svg {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: var(--pattern), var(--map, linear-gradient(90deg, #888, #fff));
background-blend-mode: multiply;
filter: contrast(5) blur(20px) saturate(35%) brightness(0.4);
mix-blend-mode: darken;
--pattern: repeating-radial-gradient(circle, var(--a), var(--b), var(--c) 15em);
/* We use steps here to limit framerate to reduce CPU usage displaying the animation*/
/* Because it is a slowly changing background, a low framerate does not impact apparent smoothness of the animation */
animation: bganimation 120s forwards steps(1200) infinite;
transform: translateX(35%) translateY(75%) scale(4.5)
}
@keyframes bganimation {
0% { --a: #453f53;
--b: #fff;
--c: #777;
transform: translateX(35%) translateY(75%) scale(4.5)}
33% { --a: #ce8083;
--b: #ac8cbd;
--c: #3b1c80;
transform: rotate(-10deg) scale(4.0,3.5) translateX(15%) translateY(25%)}
66% { --a: #309385;
--b: #5aa8fb;
--c: #866849;
transform: rotate(10deg) scale(4.5,3.5) translateX(25%) translateY(-15%)}
100% { --a: #453f53;
--b: #fff;
--c: #777;
transform: translateX(35%) translateY(75%) scale(4.5)}
}
.loading {
display: flex;
justify-content: center;
align-items: center;
font-size: 3.0em;
color: #666;
height: 100px;
position: relative;
}
.loading::after {
content: '';
width: 40px;
height: 40px;
border: 4px solid #f3f3f3;
border-top: 4px solid #3498db;
border-radius: 50%;
animation: spin 1.0s ease-in-out infinite;
position: absolute;
margin-left: 10px;
opacity: 0.6;
}
@keyframes spin {
0% { transform: rotate(90deg); }
100% { transform: rotate(450deg); }
}
.button-container {
display: flex;
justify-content: center;
gap: 20px;
margin-top: 20px;
}
.button {
padding: 10px 20px;
background-color: #1f4e82;
color: white;
text-decoration: none;
border-radius: 5px;
transition: background-color 0.3s;
}
.button:hover {
background-color: #095fbf;
}
#signature-image {
border: 1px solid #000000;
opacity: 0;
transition: opacity 0.5s ease-in-out;
}
</style>
</html>