PDF FORM CREATOR SDK
Simplify form creation with our PDF form SDK
Easily design and customize fillable PDF forms using our intuitive UI or API. Convert static forms into interactive forms or modify existing ones by enabling users to add, edit, and remove fields with precision.
How it works
Bring forms to life
With Form Creator, users are able to drop in form fields with the help of a preview box and alignment guides. Use JavaScript to create forms dynamically, or customize fields via the intuitive UI.
step 1
Add fields like text boxes, radio buttons, checkboxes, and signature fields to your PDF form.
Step 2
Style your form fields with custom fonts, border styles, background colors, and more.
step 3
Add labels to your forms, and elevate your design further by adding headers, lines, and images for a polished, professional form.
KEY FEATURES
Flexible tools for creating interactive PDF forms
Seamlessly place text boxes, signature fields, and other elements using alignment guides and a preview box. By combining ease of use with powerful customization, our PDF form SDK library simplifies form creation while delivering unmatched versatility for developers and end users alike.
Custom PDF forms
Quickly design forms with a built-in UI or programmatically via API. Alignment tools and preview capabilities ensure accurate field placement for any layout.
Quickly design forms with a built-in UI or programmatically via API. Alignment tools and preview capabilities ensure accurate field placement for any layout.
Intuitive form creation tools
Provide your users with a variety of tools for adding form fields to a PDF document. They can choose from button, text, radio, checkbox, list box, signature, and combo box fields when creating their forms.
Provide your users with a variety of tools for adding form fields to a PDF document. They can choose from button, text, radio, checkbox, list box, signature, and combo box fields when creating their forms.
Customizable form field styling
Modify the look of the fields in the property editing view or via the API. Change the field style items such as fill and border color, as well as border style and width, or adjust the font style, colors, size, and alignment.
Modify the look of the fields in the property editing view or via the API. Change the field style items such as fill and border color, as well as border style and width, or adjust the font style, colors, size, and alignment.
Embeddable signature fields
Easily collect signatures by inserting signature form fields into a document. Support for typed, drawn, or uploaded signatures ensures flexibility for every user.
Easily collect signatures by inserting signature form fields into a document. Support for typed, drawn, or uploaded signatures ensures flexibility for every user.
Supported on
Benefits
Simplify PDF form creation
Enable users to drop and style fields like text boxes, checkboxes, and signature fields directly into PDFs with intuitive tools for precise customization.
Easily customize every detail
Let users control field behavior and style — from logic to fonts — creating forms that aren’t only functional, but are perfectly tailored to their needs.
Streamline signature collection
Seamlessly add embeddable signature fields. Let users draw, type, or upload signatures, delivering a fast, professional signing experience.
Frequently asked questions
What functionalities does Nutrient’s PDF form creator SDK provide?
The SDK enables users to design and customize fillable PDF forms with an intuitive user interface (UI) or programmatically via an API. It allows for the conversion of static forms into interactive ones and supports adding, editing, and removing various form fields with precision.
What types of form fields can be added using the SDK?
Users can incorporate a variety of form fields into their PDFs, including text boxes, radio buttons, checkboxes, list boxes, signature fields, and combo boxes. These elements can be seamlessly placed using alignment guides and a preview box, ensuring accurate field placement for any layout.
Can the appearance and behavior of form fields be customized?
Yes. The SDK allows for extensive customization of form fields. Users can modify field styles, such as fill and border color, along with border style and width. They can also adjust font style, colors, size, and alignment. Additionally, the logic of each field can be customized by modifying advanced properties through the UI or API.
Does the SDK support the addition of signature fields?
Absolutely. The SDK facilitates the embedding of signature fields into documents, allowing users to collect signatures by drawing, typing, or uploading them, thereby ensuring flexibility for every user.
Is the SDK compatible with various platforms and development environments?
Yes. Nutrient’s PDF form creator SDK is designed for cross-platform compatibility. It supports integration into web applications using JavaScript frameworks and extends support to mobile platforms through Flutter, as well as desktop applications using MAUI.
How does the SDK ensure accurate placement of form fields during design?
The SDK provides alignment tools and preview capabilities to ensure precise placement of form fields. Users can utilize alignment guides and a preview box to seamlessly place elements, ensuring accurate field placement for any layout.
Can the SDK convert existing static PDFs into interactive forms?
Yes. The SDK allows for the conversion of static forms into fillable, interactive forms. Users can modify existing forms by adding, editing, and removing form fields, thereby enhancing the interactivity and functionality of the documents.
Knowledge center
PDF form creator SDK
What is a PDF form creator SDK?
A PDF form creator SDK is a toolkit that enables developers to design and build interactive, fillable PDF forms directly within their applications. Nutrient’s PDF form creator SDK allows users to add fields, customize form styling, and apply logic to form behavior using either an intuitive UI or a flexible API.
- Add form fields like text inputs, checkboxes, radio buttons, and signature blocks.
- Use drag-and-drop tools with alignment guides for precise placement.
- Style fields with custom fonts, borders, and colors.
- Configure advanced logic and field properties via the UI or JavaScript.
- Support for typed, drawn, or uploaded digital signatures.
How to choose the right PDF form creation tool?
Selecting a form builder SDK means balancing ease of use, customization, and integration potential. Key criteria to guide your decision include:
- Ease of use — Does it offer an intuitive UI for building forms without writing code?
- Field variety — Can it support all standard form elements (text, checkboxes, dropdowns, signatures)?
- Advanced logic — Does it let you define conditional behaviors, validations, and formatting rules?
- Styling and branding — Can you fully customize the look and feel of form fields?
- Integration flexibility — Does the SDK integrate smoothly with your app’s backend and frontend tech stack?
What are the best solutions to solve my PDF form creation needs?
For building interactive, user-friendly forms within apps, these are the top contenders:
- Nutrient SDK — Offers both a visual designer and API-based customization, with a wide variety of form fields and advanced behavior settings.
- Apryse (PDFTron) SDK — Supports form creation but is more code-heavy, with fewer visual design tools.
- Adobe Acrobat SDK — Suitable for editing existing forms, but lacks embeddable UI or drag-and-drop creation features.
- iText SDK — Requires deeper configuration and is focused more on backend-based form generation.
What are the benefits of using Nutrient’s PDF form creator SDK?
Nutrient’s SDK helps you rapidly create and style dynamic forms with minimal friction — ideal for everything from onboarding forms to contracts and service applications.
- Drag-and-drop form creation — Build forms visually with instant preview and field alignment.
- Complete field control — Add and configure every standard form element, from combo boxes to signature fields.
- Custom styling — Match forms to your brand with editable fonts, borders, and colors.
- Smart form behavior — Define logic and validation rules with advanced field properties.
- Developer-friendly API — Seamlessly integrate form creation into your frontend or backend.
How does Nutrient’s SDK compare to other PDF form creation tools?
Nutrient’s form creator SDK excels by combining an intuitive UI, robust API control, and full styling capabilities in one unified solution.
- More UI and API flexibility — Use a visual builder or code, depending on your workflow.
- Faster time to form — Rapid field placement with guides and previews.
- Broader field support — From simple text boxes to complex calculated fields.
- Cross-platform support — Build forms for web, MAUI, Flutter, and more.
- Advanced signature support — Easily insert and collect typed, drawn, or uploaded signatures.