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PDF Signature Checker

Checks the digital signatures embedded in a signed PDF file.

Artifact by Corentin Thomasset (IT-Tools)

IndexedGPL-3.0Documents & PDFNo sign-up

Use it

Opens it-tools.tech in a new tab. Nothing to install.

You provide
Signed PDF
You get
Signature validity details
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
Open-source web app
Source
Open source
Link check
Answered on Oct 31, 2026

About

PDF Signature Checker is an open-source web app in the documents pdf category (pdf signature). It opens in your browser, so there is nothing to install. You provide signed PDF and get signature validity details. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (CorentinTh/it-tools).

Category: Documents & PDF · pdf signature

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Details

Auth
No auth
License
GPL-3.0
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Source
GitHub

More from Corentin Thomasset (IT-Tools)

Cite this page

PDF Signature Checker: free online. Agent Mart. https://agentmart.dev/artifacts/pdf-signature-checker (last updated 2026-10-31)