Verify signed PDFs without file upload

Swisscom Document Validator verifies signer identity and PDF integrity while you keep documents in your own environment.

Review your document workflow
Discuss your signature-check requirements

Document validator

Every digital signature links a document to the person or organization that signed it. However, legal contracts, financial records, and confidential files should not have to be uploaded to an external platform just to validate a signature.

With Swisscom Document Validator, the document hash is generated in your own environment. Only this hash and the signature metadata are sent to Swisscom for validation – the PDF itself always stays in your environment.

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PDF stays in your system

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Client-side hash
calculation

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Signature
metadata check

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Built for confidential workflows

Confidential documents demand trust

Today, checking signatures often means either uploading complete documents to a third party or performing manual, inconsistent reviews. For sensitive documents, this is not acceptable because it exposes personal, commercial, or regulated data to unnecessary risk and delays. Swisscom Document Validator verifies signatures while ensuring your documents remain confidential.

Verify signed documents with less effort

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Reduce manual
review effort

Embed signature checks in your workflow
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Support faster document processes

Validate signed files faster
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Keep data in your environment

No document uploads to Swisscom
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Support secure document insights

Clear record of what was checked and when

Three steps to privacy‑first checks

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Hash the document locally

PDF stays in your infrastructure

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Send only proof data

Only the hash and metadata are sent

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Receive a clear result

Swisscom returns a clear result for less manual work

Secure workflow for signed documents

Digital Timestamp Verification Example-3
  • Swisscom Document Validator hashes PDFs and extracts signature data in your workflow, without sending full documents.

  • Swisscom validates the signature data and returns the result

  • Built for API and workflow integration

  • Supports ZertES and eIDAS-signed PDFs

From manual checks to integrated validation

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Swisscom Document Validator fits into your existing digital workflows wherever signed documents need to be checked as part of a broader process – for example, framework agreements, seal onboarding, or internal approvals.

Instead of handling signature checks as a separate manual step, you integrate validation directly into the workflow. This creates a smoother experience for teams, customers, and partners, while sensitive documents always remain under your control.

 

Here is an example:

  1. A business customer submits a signed contract

  2. The organization validates the signature without sharing the full document

  3. The result returns to the process so the team can decide the next step

Choose the document process you want to improve

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Swisscom configures Document Validator to your use case, volume, and integration needs

 

Request a consultation

 

No purchase is required; Swisscom first assesses your needs and then recommends a validation setup

Swisscom trust for sensitive workflows

Document checks are a key part of your identity and trust chain. You must be sure that each signed document is authentic, that the signer is trustworthy in the given context, and that sensitive data is protected.

Swisscom combines expertise in digital trust services, identity, signatures, and regulated processes. Document Validator extends this trust into your workflows, allowing you to check signed PDFs without exposing the full document.

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Swisscom as your trusted infrastructure partner

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Built for confidential workflows

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Enables traceable document workflows

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Combine with other Swisscom Validator services

Extend validation into identity workflows

Validate your document workflow

Talk to a digital identity expert

 

A Swisscom expert will review your use case in advance