# Barcodes

> Merge data into barcodes: named barcode placeholders, QR codes and 1D and 2D types, TXBarcodeCore, UpperTextLength, BarcodeMerged and value validation.

- **Product:** TX Text Control .NET Server
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET Server > Mail Merge and Reporting > Barcodes
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/llms-full.txt

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## On This Page

- [How Barcode Placeholders Work](https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/#how-barcode-placeholders-work)
- [Barcode Types](https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/#barcode-types)
- [Create a Template With a QR Code Placeholder](https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/#create-a-template-with-a-qr-code-placeholder)
- [Merge the Data](https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/#merge-the-data)
- [Check Values Before Merging](https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/#check-values-before-merging)
- [Barcode Placeholders in the Document Editor](https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/#barcode-placeholders-in-the-document-editor)
- [Next Steps](https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/barcodes/#next-steps)

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## Nearby

- **Previous:** [Images](https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/images/llms.txt)
- **Next:** [Conditional Content](https://docs.textcontrol.com/tx-text-control-dotnet-server/mail-merge/conditional-content/llms.txt)