# PDF Processing > Save a WPF TextControl document as PDF or PDF/A, build a fillable PDF form with form fields and sign a PDF with an X.509 certificate, in three short tutorials. - **Product:** TX Text Control .NET for WPF - **Section:** Documentation - **Kind:** Topic - **Path:** TX Text Control .NET for WPF > Getting Started > PDF Processing - **657 words** - **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/ - **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/llms.txt - **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/llms-full.txt --- Documents that leave a WPF application for customers, archives or signatures usually leave it as PDF. TX Text Control writes PDF files directly from the document in the `TextControl` with its own PDF filter. Adobe Acrobat is not needed. Three tutorials extend the editor window of your first application step by step, from a plain PDF to a fillable form and a digitally signed document. ### What You Build | Tutorial | Result | Main members | |---|---|---| | [Create a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/create/llms-full.txt) | PDF files with document properties, a Save As dialog, PDF/A for archiving and password protection | `TextControl.Save`, `SaveSettings`, `StreamType.AdobePDF` | | [Create a PDF Form](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/form/llms-full.txt) | A PDF with a text box, a drop-down list and a check box to fill out, and the Form Fields tab of the ribbon | `FormFields`, `TextFormField`, `SelectionFormField`, `CheckFormField` | | [Digitally Sign a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/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` | ![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-wpf/pdf-form-drop-down.8ca05713.webp) ### Before You Start - Complete [Create Your First WPF Application](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/document-editor/first-application/llms-full.txt). Each tutorial adds buttons to its window, next to the `TextControl` named `textControl1`. - Check your edition. PDF is part of the Professional and Enterprise editions, PDF/A and form fields of the Enterprise edition. See [Editions and Feature Availability](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/overview/editions/llms-full.txt). The tutorials don't depend on each other, but the second and third use the `Save` call and the `SaveSettings` that [Create a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/create/llms-full.txt) introduces, so start with that one. ### The Same API as in Other Applications `SaveSettings`, the form field classes and `DigitalSignature` are shared by all TX Text Control .NET products, so the code of these tutorials also works with a `ServerTextControl`. WPF adds the XAML around it and a few types of its own: `Save` with a Save As dialog returns a `DialogResult` of the namespace `TXTextControl.WPF`, and the **Form Fields** tab is a `RibbonFormFieldsTab` in the `Ribbon` of WPF. ### Related Documentation - [Save as DOCX and PDF](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/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-wpf/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-wpf/digital-signatures/llms-full.txt): certificates, signature fields and timestamps in detail. - [PDF Examples](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/examples/pdf/llms-full.txt): samples for electronic invoices, watermarks, form data and attachments. --- ## In This Section - [Create a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/create/llms-full.txt): Save a WPF TextControl document as PDF with SaveSettings: document properties, a Save As dialog, PDF/A from a ServerTextControl copy and passwords. - [Create a PDF Form](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/form/llms-full.txt): Insert text, drop-down and check box form fields into a WPF TextControl in code or with the Form Fields ribbon tab, and save them as a fillable PDF form. - [Digitally Sign a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/sign/llms-full.txt): Sign a PDF from a WPF TextControl with an X.509 certificate: create a test .pfx, sign signature fields and understand timestamp limitations. --- ## Nearby - **Previous:** [Add Repeating Merge Blocks](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/mail-merge/blocks/llms-full.txt) - **Next:** [Create a PDF](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/getting-started/pdf/create/llms-full.txt)