---
title: "Convert HTML to PDF from raw HTML"
description: "Learn how to convert raw HTML to PDF using Java and the Netty library. This guide offers detailed steps with code samples in Java and the Netty library, showing how to convert HTML content directly to PDF."
language: 'Java'
library: 'Netty'
property: 'source'
output: 'pdf'
related: ['convert-html-to-pdf-from-a-url', 'loading-css-from-a-string']
default: true
---
In this guide, we'll show you how to convert raw HTML to PDF using Java and the Netty library.
Converting raw HTML content to PDF is useful when you have HTML content that isn't hosted on a web server.
```java
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.*;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.http.*;
import io.netty.util.CharsetUtil;
// You can get an API key at https://pdfshift.io
String apiKey = "sk_xxxxxxxxxxxx";
EventLoopGroup group = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(group)
.channel(NioSocketChannel.class)
.handler(new ChannelInitializer() {
@Override
public void initChannel(SocketChannel ch) {
ChannelPipeline p = ch.pipeline();
p.addLast(new HttpClientCodec());
p.addLast(new HttpObjectAggregator(1024 * 1024));
}
});
Channel ch = b.connect("api.pdfshift.io", 443).sync().channel();
FullHttpRequest request = new DefaultFullHttpRequest(
HttpVersion.HTTP_1_1, HttpMethod.POST, "/v3/convert/pdf");
request.headers().set(HttpHeaderNames.HOST, "api.pdfshift.io");
request.headers().set("X-API-Key", apiKey);
request.headers().set(HttpHeaderNames.CONTENT_TYPE, "application/json");
String payload = "{\n" +
" \"source\": \"Hello World
\"\n" +
"}";
request.content().writeBytes(payload.getBytes(CharsetUtil.UTF_8));
request.headers().setInt(HttpHeaderNames.CONTENT_LENGTH, request.content().readableBytes());
ChannelFuture f = ch.writeAndFlush(request);
f.addListener(ChannelFutureListener.CLOSE);
// Handle response and save PDF...
System.out.println("The PDF document was generated and saved to result.pdf");
} finally {
group.shutdownGracefully();
}
```
This allows you to convert HTML content directly to PDF without needing a URL.