[{"data":1,"prerenderedAt":141},["Reactive",2],{"/guides/java/netty/adding-a-custom-header-or-footer":3,"/guides/java/netty/adding-a-custom-header-or-footer-related":59},{"_path":4,"_dir":5,"_draft":6,"_partial":6,"_locale":7,"title":8,"description":9,"language":10,"library":11,"property":12,"output":13,"related":14,"default":6,"body":17,"_type":54,"_id":55,"_source":56,"_file":57,"_extension":58},"/guides/java/netty/adding-a-custom-header-or-footer","netty",false,"","Adding a custom header or footer","Learn how to add custom headers and footers to your PDFs using Java and the Netty library. This guide offers detailed steps with code samples in Java and the Netty library, showing how to customize PDF appearance with headers and footers.","Java","Netty","header","pdf",[15,16],"loading-css-from-a-string","loading-css-from-a-url",{"type":18,"children":19,"toc":51},"root",[20,28,33,46],{"type":21,"tag":22,"props":23,"children":24},"element","p",{},[25],{"type":26,"value":27},"text","In this guide, we'll show you how to add custom headers and footers to your PDFs using Java and the Netty library.",{"type":21,"tag":22,"props":29,"children":30},{},[31],{"type":26,"value":32},"When generating PDFs, you might want to add custom headers and footers to your documents for branding or informational purposes.",{"type":21,"tag":34,"props":35,"children":40},"pre",{"className":36,"code":38,"language":39,"meta":7},[37],"language-java","import io.netty.bootstrap.Bootstrap;\nimport io.netty.channel.*;\nimport io.netty.channel.nio.NioEventLoopGroup;\nimport io.netty.channel.socket.SocketChannel;\nimport io.netty.channel.socket.nio.NioSocketChannel;\nimport io.netty.handler.codec.http.*;\nimport io.netty.util.CharsetUtil;\n\n// You can get an API key at https://pdfshift.io\nString apiKey = \"sk_xxxxxxxxxxxx\";\n\nEventLoopGroup group = new NioEventLoopGroup();\ntry {\n    Bootstrap b = new Bootstrap();\n    b.group(group)\n        .channel(NioSocketChannel.class)\n        .handler(new ChannelInitializer\u003CSocketChannel>() {\n            @Override\n            public void initChannel(SocketChannel ch) {\n                ChannelPipeline p = ch.pipeline();\n                p.addLast(new HttpClientCodec());\n                p.addLast(new HttpObjectAggregator(1024 * 1024));\n            }\n        });\n\n    Channel ch = b.connect(\"api.pdfshift.io\", 443).sync().channel();\n\n    FullHttpRequest request = new DefaultFullHttpRequest(\n        HttpVersion.HTTP_1_1, HttpMethod.POST, \"/v3/convert/pdf\");\n    \n    request.headers().set(HttpHeaderNames.HOST, \"api.pdfshift.io\");\n    request.headers().set(\"X-API-Key\", apiKey);\n    request.headers().set(HttpHeaderNames.CONTENT_TYPE, \"application/json\");\n    \n    String payload = \"{\\n\" +\n        \"  \\\"source\\\": \\\"https://www.example.com\\\",\\n\" +\n        \"  \\\"header\\\": {\\n\" +\n        \"    \\\"content\\\": \\\"\u003Cdiv style='text-align: center;'>Header Content\u003C/div>\\\",\\n\" +\n        \"    \\\"height\\\": \\\"20mm\\\"\\n\" +\n        \"  },\\n\" +\n        \"  \\\"footer\\\": {\\n\" +\n        \"    \\\"content\\\": \\\"\u003Cdiv style='text-align: center;'>Footer Content\u003C/div>\\\",\\n\" +\n        \"    \\\"height\\\": \\\"20mm\\\"\\n\" +\n        \"  }\\n\" +\n        \"}\";\n    \n    request.content().writeBytes(payload.getBytes(CharsetUtil.UTF_8));\n    request.headers().setInt(HttpHeaderNames.CONTENT_LENGTH, request.content().readableBytes());\n\n    ChannelFuture f = ch.writeAndFlush(request);\n    f.addListener(ChannelFutureListener.CLOSE);\n    \n    // Handle response and save PDF...\n    \n    System.out.println(\"The PDF document was generated and saved to result.pdf\");\n} finally {\n    group.shutdownGracefully();\n}\n","java",[41],{"type":21,"tag":42,"props":43,"children":44},"code",{"__ignoreMap":7},[45],{"type":26,"value":38},{"type":21,"tag":22,"props":47,"children":48},{},[49],{"type":26,"value":50},"This allows you to add consistent branding elements to all your generated PDF documents.",{"title":7,"searchDepth":52,"depth":52,"links":53},2,[],"markdown","content:guides:java:netty:adding-a-custom-header-or-footer.md","content","guides/java/netty/adding-a-custom-header-or-footer.md","md",[60,64,65,69,73,77,81,85,89,93,97,101,105,109,113,117,121,125,129,133,137],{"_path":61,"title":62,"language":10,"library":11,"_id":63},"/guides/java/netty/accessing-secured-pages","Accessing secured pages","content:guides:java:netty:accessing-secured-pages.md",{"_path":4,"title":8,"language":10,"library":11,"_id":55},{"_path":66,"title":67,"language":10,"library":11,"_id":68},"/guides/java/netty/adding-a-text-watermark","Adding a text watermark","content:guides:java:netty:adding-a-text-watermark.md",{"_path":70,"title":71,"language":10,"library":11,"_id":72},"/guides/java/netty/adding-an-image-watermark","Adding an image watermark","content:guides:java:netty:adding-an-image-watermark.md",{"_path":74,"title":75,"language":10,"library":11,"_id":76},"/guides/java/netty/avoid-conversion-on-error","Avoid conversion on error","content:guides:java:netty:avoid-conversion-on-error.md",{"_path":78,"title":79,"language":10,"library":11,"_id":80},"/guides/java/netty/convert-html-to-pdf-from-a-url","Convert HTML to PDF from a URL","content:guides:java:netty:convert-html-to-pdf-from-a-url.md",{"_path":82,"title":83,"language":10,"library":11,"_id":84},"/guides/java/netty/convert-html-to-pdf-from-raw-html","Convert HTML to PDF from raw HTML","content:guides:java:netty:convert-html-to-pdf-from-raw-html.md",{"_path":86,"title":87,"language":10,"library":11,"_id":88},"/guides/java/netty/define-a-time-limit","Define a time limit","content:guides:java:netty:define-a-time-limit.md",{"_path":90,"title":91,"language":10,"library":11,"_id":92},"/guides/java/netty/exporting-only-a-specific-set-of-pages","Exporting only a specific set of pages","content:guides:java:netty:exporting-only-a-specific-set-of-pages.md",{"_path":94,"title":95,"language":10,"library":11,"_id":96},"/guides/java/netty/generate-a-document-with-full-height","Generate a document with full height","content:guides:java:netty:generate-a-document-with-full-height.md",{"_path":98,"title":99,"language":10,"library":11,"_id":100},"/guides/java/netty/loading-css-from-a-string","Loading CSS from a string","content:guides:java:netty:loading-css-from-a-string.md",{"_path":102,"title":103,"language":10,"library":11,"_id":104},"/guides/java/netty/loading-css-from-a-url","Loading CSS from a URL","content:guides:java:netty:loading-css-from-a-url.md",{"_path":106,"title":107,"language":10,"library":11,"_id":108},"/guides/java/netty/loading-javascript-from-a-string","Loading JavaScript from a string","content:guides:java:netty:loading-javascript-from-a-string.md",{"_path":110,"title":111,"language":10,"library":11,"_id":112},"/guides/java/netty/loading-javascript-from-a-url","Loading JavaScript from a URL","content:guides:java:netty:loading-javascript-from-a-url.md",{"_path":114,"title":115,"language":10,"library":11,"_id":116},"/guides/java/netty/protecting-the-generated-pdf","Protecting the generated PDF","content:guides:java:netty:protecting-the-generated-pdf.md",{"_path":118,"title":119,"language":10,"library":11,"_id":120},"/guides/java/netty/receive-a-webhook-event","Receive a webhook event","content:guides:java:netty:receive-a-webhook-event.md",{"_path":122,"title":123,"language":10,"library":11,"_id":124},"/guides/java/netty/save-your-pdf-online-and-get-back-a-url","Save your PDF online and get back a URL","content:guides:java:netty:save-your-pdf-online-and-get-back-a-url.md",{"_path":126,"title":127,"language":10,"library":11,"_id":128},"/guides/java/netty/save-your-pdf-to-your-amazon-s3-bucket","Save your PDF to your Amazon S3 bucket","content:guides:java:netty:save-your-pdf-to-your-amazon-s3-bucket.md",{"_path":130,"title":131,"language":10,"library":11,"_id":132},"/guides/java/netty/send-custom-http-headers","Send custom HTTP headers","content:guides:java:netty:send-custom-http-headers.md",{"_path":134,"title":135,"language":10,"library":11,"_id":136},"/guides/java/netty/using-cookies","Using cookies","content:guides:java:netty:using-cookies.md",{"_path":138,"title":139,"language":10,"library":11,"_id":140},"/guides/java/netty/waiting-for-a-custom-element-to-be-ready","Waiting for a custom element to be ready","content:guides:java:netty:waiting-for-a-custom-element-to-be-ready.md",1780405108520]