What is ButterflyAPI?

ButterflyAPI is a visual AI transformation platform that provides access to cutting-edge AI models for image generation, image transformation, video generation, and image processing. Developers can integrate AI capabilities into their applications with simple REST API calls.

What AI models does ButterflyAPI use?

ButterflyAPI uses state-of-the-art diffusion models and neural networks for generative AI tasks including text-to-image generation, image-to-image transformation, AI video generation, background removal, super resolution upscaling, and more.

How much does ButterflyAPI cost?

ButterflyAPI uses a pay-per-use credit system. New users get 100 free credits. Credits can be purchased in packs starting from £4.99, or through monthly subscriptions. There are no hidden fees and credits never expire.

Can I generate AI videos with ButterflyAPI?

Yes, ButterflyAPI offers AI video generation APIs that can create videos from images. Our video generation models can produce 5-10 second AI-generated videos from a single input image.

HTML to PDF

document Sync

Convert HTML or raw text to downloadable PDF documents

Fast synchronous response

Overview

Convert HTML markup, raw text, or web pages into high-quality PDF documents. Our API uses a headless browser engine to render HTML exactly as it would appear in a web browser, ensuring accurate styling, fonts, and layout. Perfect for generating invoices, reports, certificates, and any document that needs to be shared or printed.

Parameters

Request body parameters for this API

Name	Type	Required	Description
`html`	string	Optional	HTML content to convert (mutually exclusive with text/url)
`text`	string	Optional	Plain text to convert (mutually exclusive with html/url)
`url`	string	Optional	URL of web page to convert (mutually exclusive with html/text)
`options.format`	string	Optional	Page format: A4, A3, A5, Letter, Legal, Tabloid (default: A4)
`options.landscape`	boolean	Optional	Use landscape orientation (default: false)
`options.margin.top`	string	Optional	Top margin (e.g., '20mm')
`options.margin.right`	string	Optional	Right margin (e.g., '20mm')
`options.margin.bottom`	string	Optional	Bottom margin (e.g., '20mm')
`options.margin.left`	string	Optional	Left margin (e.g., '20mm')
`options.printBackground`	boolean	Optional	Print background graphics (default: true)
`options.scale`	number	Optional	Scale factor 0.1-2 (default: 1)

Response

Response fields returned by this API

Field	Type	Description
`Content-Type`	header	application/pdf
`Content-Disposition`	header	attachment; filename='document-{id}.pdf'
`X-Job-Id`	header	Unique job identifier
`X-Credits-Charged`	header	Number of credits charged
`body`	binary	PDF file buffer

Examples

Code examples coming soon

Detailed code examples in multiple languages will be added here.

Features

HTML, text, or URL input
Accurate CSS rendering
Custom page formats (A4, Letter, etc.)
Portrait or landscape orientation
Custom margins and scaling
Background printing support
Header and footer templates
Fast synchronous response

Use Cases

Invoice and receipt generation
Report and certificate creation
Converting web pages to PDF
Document archival
Email attachment generation
Printable ticket creation

Quick Links

Full Documentation API Playground View Pricing

CineFlow AI

Name

Type

Required

Description

html

string

Optional

HTML content to convert (mutually exclusive with text/url)

text

string

Optional

Plain text to convert (mutually exclusive with html/url)

url

string

Optional

URL of web page to convert (mutually exclusive with html/text)

options.format

string

Optional

Page format: A4, A3, A5, Letter, Legal, Tabloid (default: A4)

options.landscape

boolean

Optional

Use landscape orientation (default: false)

options.margin.top

string

Optional

Top margin (e.g., '20mm')

options.margin.right

string

Optional

Right margin (e.g., '20mm')

options.margin.bottom

string

Optional

Bottom margin (e.g., '20mm')

options.margin.left

string

Optional

Left margin (e.g., '20mm')

options.printBackground

boolean

Optional

Print background graphics (default: true)

options.scale

number

Optional

Scale factor 0.1-2 (default: 1)

Field

Type

Description

Content-Type

header

application/pdf

Content-Disposition

header

attachment; filename='document-{id}.pdf'

X-Job-Id

header

Unique job identifier

X-Credits-Charged

header

Number of credits charged

body

binary

PDF file buffer