# PDF Processing

> Three Windows Forms tutorials on PDF: document properties and passwords, PDF/A for archiving, fillable PDF forms and PDF files signed with a certificate.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET for Windows Forms > Getting Started > PDF Processing
- **562 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/llms-full.txt

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PDF is the format most Windows Forms applications hand their documents out in, and TX Text Control writes it directly from the document in the editor. Three short tutorials take the editor of your first application from a plain PDF to a fillable PDF form and a digitally signed PDF, each in a few button handlers.

### What You Build

| Tutorial | Result | Main members |
|---|---|---|
| [Create a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/create/llms-full.txt) | PDF documents with properties, PDF/A for archiving and password-protected PDFs | `TextControl.Save`, `SaveSettings`, `StreamType.AdobePDF` |
| [Create a PDF Form](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/form/llms-full.txt) | A PDF with a text box, a drop-down list and a check box that users fill out | `FormFields`, `TextFormField`, `SelectionFormField`, `CheckFormField` |
| [Digitally Sign a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/sign/llms-full.txt) | A PDF signed with a certificate, with a timestamp and a visible signature field | `DigitalSignature`, `SaveSettings.DigitalSignature`, `SignatureField` |

TX Text Control creates these PDF documents with its own PDF filter. Adobe Acrobat is not needed.

![A PDF form created with TX Text Control, open in Adobe Acrobat with its drop-down list expanded.](https://docs.textcontrol.com/assets/img/tx-text-control-dotnet-winforms/pdf-form-drop-down.8ca05713.webp)

### Before You Start

- Complete [Create Your First Windows Forms Application](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/document-editor/first-application/llms-full.txt). All three tutorials add buttons to its form with the `TextControl` named `textControl1`.
- Check your edition: PDF is part of the Professional and Enterprise editions, and PDF/A and form fields are part of the Enterprise edition. See [Editions and Feature Availability](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/overview/editions/llms-full.txt).

Work through the tutorials in order. Each one stands on its own, but the later ones build on the saving shown in [Create a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/create/llms-full.txt).

### Related Documentation

- [Save as DOCX and PDF](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/document-processing/save-docx-pdf/llms-full.txt): convert documents with `ServerTextControl`, without the editor.
- [PDF Processing](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/pdf/llms-full.txt): PDF creation, import, PDF/A, fonts, forms, attachments and passwords in detail.
- [Digital Signatures](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/digital-signatures/llms-full.txt): certificates, signature fields and timestamps in detail.
- [Supported File Formats](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/overview/file-formats/#pdf): what TX Text Control does with PDF, PDF/A and PDF/UA.

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## In This Section

- [Create a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/create/llms-full.txt): Create PDF files from a Windows Forms TextControl: title and author in SaveSettings, a Save As dialog, PDF/A, user and master passwords and ServerTextControl.
- [Create a PDF Form](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/form/llms-full.txt): Build a fillable PDF form in Windows Forms: add TextFormField, SelectionFormField and CheckFormField to a TextControl, name them and save the form as PDF.
- [Digitally Sign a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/sign/llms-full.txt): Sign PDF files from Windows Forms with a .pfx certificate and DigitalSignature: invisible signatures, trusted timestamps and a signature field with an image.

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## Nearby

- **Previous:** [Add Repeating Merge Blocks](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/mail-merge/blocks/llms-full.txt)
- **Next:** [Create a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/getting-started/pdf/create/llms-full.txt)