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feat: add Sign PDF tool (draw/type/upload signatures, place on a PDF) (#370)

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Draw, type, or upload a signature and place resizable/rotatable copies across PDF pages; output flattened server-side with PyMuPDF. Visual electronic signature, not cryptographic. New interactive-sign display mode (pdf.js + Konva) and a custom docs-pool route.
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SnapOtter
2026-06-29 11:01:25 +08:00
committed by GitHub
parent 1c202c6ef0
commit 0cdd560ac4
51 changed files with 2223 additions and 10 deletions
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apps/landing/src/data/tool-seo.ts
+32
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@@ -6795,6 +6795,38 @@ export const TOOL_SEO: Record<string, ToolSeo> = {
},
],
},
"sign-pdf": {
searchTitle: "Sign a PDF Online Free",
longDescription:
"Add a signature to a PDF by drawing it, typing it, or uploading a signature image, then drag it onto the page and resize it to fit. This is a visual electronic signature for approvals and sign-off, not a cryptographic certificate-based digital signature. Runs locally on your SnapOtter instance, so contracts and agreements never leave your network.",
useCases: [
"Signing a contract or agreement before sending it back",
"Filling in and signing an onboarding or HR form",
"Placing initials on each page of a multi-page document",
"Signing an invoice without printing and scanning it",
],
features: [
"Draw, type, or upload a signature image",
"Drag to position and resize the signature anywhere on a page",
"Add signatures or initials across one page or many",
"Reuse saved signatures stored locally in your browser",
"Visual electronic signature applied as a non-destructive overlay",
],
faqs: [
{
q: "How do I sign a PDF?",
a: "Draw your signature, type it, or upload an image of it, then drag it onto the page and resize it to fit. Everything is processed locally on your SnapOtter instance.",
},
{
q: "Is this a cryptographic digital signature?",
a: "No. SnapOtter adds a visual electronic signature that you draw, type, or upload and place on the page. It does not apply a cryptographic certificate-based digital signature or embed a PKI certificate, so use a dedicated PKI tool if you need a tamper-evident certified signature.",
},
{
q: "Are my signed documents kept private?",
a: "Yes. SnapOtter signs PDFs entirely on your self-hosted instance, so your documents and signatures are never uploaded to an external server or cloud service.",
},
],
},
"pdf-page-numbers": {
searchTitle: "Add Page Numbers to PDF Free",
longDescription: