Signature Background Remover

.tp-us-ad{margin:22px 0;padding:10px;border:1px solid #e3edf0;border-radius:10px;background:linear-gradient(180deg,#fff,#f7fbfc);text-align:center;min-height:110px;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(20,34,43,.05);position:relative} .tp-us-ad:before{content:"Advertisement";position:absolute;top:8px;left:50%;transform:translateX(-50%);font-size:11px;color:#7b8b93;letter-spacing:.08em;text-transform:uppercase} @media(max-width:560px){.tp-us-ad{margin:18px 0;min-height:90px;padding:8px}} .tp-us{--ink:#14222b;--muted:#61717b;--line:#dce8eb;--soft:#f4fafb;--brand:#0f4c5c;--brand2:#287f8c;--gold:#e8b54f;font-family:Arial,sans-serif;color:var(--ink);line-height:1.6} .tp-us *{box-sizing:border-box} .tp-us .hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#0f4c5c 0%,#1d7f8b 58%,#e8b54f 160%);color:#fff;padding:34px 24px;border-radius:10px;margin:0 0 20px;box-shadow:0 18px 42px rgba(15,76,92,.18)} .tp-us .hero h1{font-size:clamp(30px,5vw,50px);line-height:1.08;margin:0 0 10px;letter-spacing:0} .tp-us .hero p{max-width:780px;margin:0;color:#eaf6f7;font-size:17px} .tp-us .badge{display:inline-flex;padding:8px 12px;border:1px solid rgba(255,255,255,.35);border-radius:999px;background:rgba(255,255,255,.12);font-weight:700;font-size:13px;margin-bottom:14px} .tp-us .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:16px;margin:16px 0} .tp-us .card{border:1px solid var(--line);border-radius:10px;padding:18px;background:linear-gradient(180deg,#fff,#fbfefe);box-shadow:0 12px 30px rgba(20,34,43,.07)} .tp-us .card h2{font-size:22px;line-height:1.2;margin:0 0 10px;color:#102b35} .tp-us .muted{color:var(--muted);font-size:14px} .tp-us label{display:block;font-weight:800;margin:12px 0 5px;color:#22333b} .tp-us input,.tp-us select,.tp-us textarea{width:100%;min-height:43px;border:1px solid #bfd2d7;border-radius:8px;background:#fff;padding:10px 12px;color:var(--ink);outline:none} .tp-us button,.tp-us .btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;margin:12px 8px 0 0;background:var(--brand);color:#fff!important;border:0;border-radius:8px;padding:10px 15px;font-weight:800;text-decoration:none;cursor:pointer;box-shadow:0 8px 18px rgba(15,76,92,.16)} .tp-us .secondary{background:var(--gold);color:#17252b!important} .tp-us .result{margin-top:12px;padding:12px;background:#eef8f9;border:1px solid #d4e7eb;border-left:5px solid var(--brand);border-radius:8px;word-break:break-word} .tp-us canvas{max-width:100%;border:1px solid var(--line);border-radius:8px;margin-top:12px;background:#fff} .tp-us .linklist a{display:block;padding:10px 0;color:var(--brand);font-weight:800;text-decoration:none;border-bottom:1px solid #edf3f5} @media(max-width:560px){.tp-us .hero{padding:28px 18px}.tp-us .card{padding:15px}.tp-us button,.tp-us .btn{width:100%;margin-right:0}.tp-us .grid{grid-template-columns:1fr}} US Tools & Document GuidesSignature Background RemoverFree online helper for signature background remover. Use this page for quick calculations, image preparation, document guidance, and related tools.Signature CleanerRemove white paper background from a black or blue signature. Processing happens in your browser.ThresholdClean SignatureDownload PNGRelated ToolsUS Tools Hub2x2 Passport Photo MakerSignature Background RemoverUSD to BDT Rate TodayImportant NoteAlways confirm final requirements from the official agency, employer, payment provider, or application portal before submitting files or making payments. This page is a helpful tool and guide, not an official government or financial service.function loadImg(f){return new Promise((res,rej)=>{const i=new Image();i.onload=()=>res(i);i.onerror=rej;i.src=URL.createObjectURL(f);});}async function cleanSig(){const f=document.getElementById('file').files[0];if(!f)return alert('Select image');const img=await loadImg(f),c=document.getElementById('output'),ctx=c.getContext('2d');c.width=img.width;c.height=img.height;ctx.drawImage(img,0,0);const d=ctx.getImageData(0,0,c.width,c.height),thr=+document.getElementById('thr').value;for(let i=0;ithr)d.data[i+3]=0;else{d.data[i]=0;d.data[i+1]=0;d.data[i+2]=0;}}ctx.putImageData(d,0,0);}function downloadCanvas(id,n,t){const c=document.getElementById(id);if(!c.width)return alert('Create output first');const a=document.createElement('a');a.download=n;a.href=c.toDataURL(t);a.click();}

Signature Background Remover

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