# Timestamp Configuration

> Configure RFC 3161 timestamps for PDF signatures in Windows Forms: the timeServerURL parameter, fallback servers, InvalidTimeServer, fields and PAdES-T.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET for Windows Forms > Digital Signatures > Timestamp Configuration
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/llms-full.txt

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## On This Page

- [Why a Signature Needs a Trusted Time](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/#why-a-signature-needs-a-trusted-time)
- [How a Timestamp Is Created](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/#how-a-timestamp-is-created)
- [Specify the Time Server](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/#specify-the-time-server)
- [Handle an Unavailable Time Server](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/#handle-an-unavailable-time-server)
- [Add Timestamps to Signature Fields](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/#add-timestamps-to-signature-fields)
- [How Readers Show the Signing Time](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/#how-readers-show-the-signing-time)
- [Timestamps and PAdES](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/#timestamps-and-pades)
- [Next Steps](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/timestamps/#next-steps)

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## Nearby

- **Previous:** [Multiple Signatures](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/multiple/llms.txt)
- **Next:** [Integration Guide](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/integration/llms.txt)