gotenberg_pdf 0.1.4

A Rust client for the Gotenberg PDF API
Documentation

Gotenberg PDF Client

crates.io docs.rs

gotenberg_pdf is a Rust library that provides an easy-to-use interface for interacting with the Gotenberg API. Use this library to convert URLs, HTML, or Markdown to PDF with highly customizable options.

Features

  • URL to PDF: Generate PDFs directly from a webpage URL.
  • HTML to PDF: Convert raw HTML into a PDF.
  • Markdown to PDF: Render Markdown files into a PDF using an HTML template.
  • Customizable Options: Configure PDF rendering with paper size, margins, headers/footers, and more.

Installation

Add gotenberg_pdf to your Cargo.toml:

[dependencies]
gotenberg_pdf = "0.1.0"  # Replace with the latest version

Ensure you have a running instance of Gotenberg, typically via Docker:

docker run --rm -p 3000:3000 gotenberg/gotenberg:8

Usage Examples

Convert URL to PDF

use gotenberg_pdf::{Client, WebOptions, PaperFormat};
use tokio;

#[tokio::main]
async fn main() {
    // Initialize the client with the Gotenberg server URL
    let client = Client::new("http://localhost:3000");

    // Define optional rendering configurations
    let mut options = WebOptions::default();
    options.set_paper_format(PaperFormat::A4);

    // Convert a URL to PDF
    let pdf_bytes = client.pdf_from_url("https://example.com", options).await.unwrap();
}

Convert HTML to PDF

use gotenberg_pdf::{Client, WebOptions};
use tokio;

#[tokio::main]
async fn main() {
    let client = Client::new("http://localhost:3000");

    let html_content = r#"
    <!doctype html>
    <html>
        <head><title>My PDF</title></head>
        <body><h1>Hello, PDF!</h1></body>
    </html>
    "#;

    let options = WebOptions::default();

    let pdf_bytes = client.pdf_from_html(html_content, options).await.unwrap();
}

Convert Markdown to PDF

use gotenberg_pdf::{Client, WebOptions};
use std::collections::HashMap;
use tokio;

#[tokio::main]
async fn main() {
    let client = Client::new("http://localhost:3000");

    // Markdown content
    let mut markdown_files = HashMap::new();
    markdown_files.insert("example.md", "# My Markdown PDF\nThis is a test document.");

    // HTML template to wrap the markdown
    let html_template = r#"
    <!doctype html>
    <html>
        <head><title>Markdown PDF</title></head>
        <body>{{ toHTML "example.md" }}</body>
    </html>
    "#;

    let options = WebOptions::default();

    let pdf_bytes = client.pdf_from_markdown(html_template, markdown_files, options).await.unwrap();
}

Take a Screenshot of a URL

use gotenberg_pdf::{Client, ScreenshotOptions, ImageFormat};
use tokio;

#[tokio::main]
async fn main() {
    let client = Client::new("http://localhost:3000");

    let mut options = ScreenshotOptions::default();
    options.width = Some(1920);
    options.height = Some(1080);
    options.format = Some(ImageFormat::Png);

    let image_bytes = client.screenshot_url("https://example.com", options).await.unwrap();

    println!("Screenshot captured: {} bytes", image_bytes.len());
}

Convert Document to PDF Using LibreOffice Engine

use gotenberg_pdf::{Client, DocumentOptions};
use tokio;

#[tokio::main]
async fn main() {
    let client = Client::new("http://localhost:3000");

    let filename = "test_files/example.docx";
    let file_content = std::fs::read(filename).expect("Failed to read the file");

    let options = DocumentOptions {
        landscape: Some(false),
        ..Default::default()
    };

    let pdf_bytes = client.pdf_from_doc(filename, file_content, options).await.unwrap();
}

Convert HTML to Screenshot Image

use gotenberg_pdf::{Client, ScreenshotOptions, ImageFormat};
use tokio;

#[tokio::main]
async fn main() {
    let client = Client::new("http://localhost:3000");

    let html_content = r#"
    <!doctype html>
    <html>
        <head><title>Screenshot</title></head>
        <body><h1>Hello, Screenshot!</h1></body>
    </html>
    "#;

    let mut options = ScreenshotOptions::default();
    options.width = Some(800);
    options.height = Some(600);
    options.format = Some(ImageFormat::Png);

    let image_bytes = client.screenshot_html(html_content, options).await.unwrap();
}

Configuration Options

[WebOptions]

Provides control over the PDF generation process from the Chrome engine. These options can be passed to the following methods:

  • [Client::pdf_from_url]
  • [Client::pdf_from_html]
  • [Client::pdf_from_markdown]
Field Name Description Default
trace_id Unique trace ID for request Random UUID
single_page Print content on one page false
paper_width Paper width in various units 8.5 inches
paper_height Paper height in various units 11 inches
margin_top Top margin in various units 0.39 inches
margin_bottom Bottom margin in various units 0.39 inches
margin_left Left margin in various units 0.39 inches
margin_right Right margin in various units 0.39 inches
prefer_css_page_size Use CSS-defined page size false
generate_document_outline Embed document outline false
print_background Include background graphics false
omit_background Allow transparency in PDF false
landscape Set page orientation to landscape false
scale Scale of page rendering 1.0
native_page_ranges Page ranges to print, eg 1,3,5, 1-4 All pages
header_html HTML for header content None
footer_html HTML for footer content None
wait_delay Delay before conversion None
wait_for_expression JavaScript expression to wait for before convert None
emulated_media_type Emulated media type ("screen" or "print") print
cookies Cookies for Chromium None
skip_network_idle_events Ignore network idle events true
user_agent Override default User-Agent header None
extra_http_headers Additional HTTP headers None
pdfa Convert to specific PDF/A format None
pdfua Enable Universal Access compliance None
metadata PDF metadata None
fail_on_http_status_codes HTTP status codes to fail on, 99's are wild [499, 599]
fail_on_resource_http_status_codes Resource HTTP status codes to fail on None
fail_on_resource_loading_failed Fail if resource loading fails false
fail_on_console_exceptions Fail on Chromium console exceptions None

Includes the [WebOptions::set_paper_format] utlity method for common paper sizes.

[ScreenshotOptions]

Provides control over the screenshot generation process from the Chrome engine. These options can be passed to the following method:

  • [Client::screenshot_url]
  • [Client::screenshot_html]
  • [Client::screenshot_markdown]
Field Name Description Default
trace_id Unique trace ID for request Random UUID
width Device screen width in pixels 800
height Device screen height in pixels 600
clip Clip screenshot to device dimensions false
format Image format ("png", "jpeg", "webp") png
quality Compression quality (jpeg only, 0-100) 100
omit_background Generate screenshot with transparency false
optimize_for_speed Optimize image encoding for speed false
wait_delay Delay before taking screenshot None
wait_for_expression JavaScript expression to wait for None
emulated_media_type Emulated media type ("screen" or "print") print
cookies Cookies for Chromium None
skip_network_idle_events Ignore network idle events true
user_agent Override default User-Agent header None
extra_http_headers Additional HTTP headers None
fail_on_http_status_codes HTTP status codes to fail on, 99's are wild [499, 599]
fail_on_resource_http_status_codes Resource HTTP status codes to fail on None
fail_on_resource_loading_failed Fail if resource loading fails false
fail_on_console_exceptions Fail on Chromium console exceptions None

[DocumentOptions]

Provides control over the document generation process from the Chrome engine. These options can be passed to the following method:

  • [Client::pdf_from_doc]
Field Name Description Default
trace_id Unique trace ID for request Random UUID
password Password for opening the source file None
landscape Set paper orientation to landscape false
native_page_ranges Page ranges to print, eg 1,2,3 or 1-4 All pages
export_form_fields Export form fields as widgets true
allow_duplicate_field_names Allow duplicate field names in form fields false
export_bookmarks Export bookmarks to PDF true
export_bookmarks_to_pdf_destination Export bookmarks as named destinations false
export_placeholders Export placeholder fields visual markings only false
export_notes Export notes to PDF false
export_notes_pages Export notes pages (Impress only) false
export_only_notes_pages Export only notes pages false
export_notes_in_margin Export notes in margin false
convert_ooo_target_to_pdf_target Convert .od[tpgs] links to .pdf false
export_links_relative_fsys Export file:// links as relative false
export_hidden_slides Export hidden slides (Impress only) false
skip_empty_pages Suppress automatically inserted empty pages false
add_original_document_as_stream Add original document as a stream false
single_page_sheets Put each sheet on one page false
lossless_image_compression Use lossless image compression (e.g., PNG) false
quality JPG export quality (1-100) 90
reduce_image_resolution Reduce image resolution false
max_image_resolution Max resolution DPI. 75, 150, 300, 600 or 1200 300
pdfa Convert to specific PDF/A format None
pdfua Enable Universal Access compliance None

Features

By default there is no support for HTTPS or HTTP/2. If you need these features, you can enable them by adding the following features to your Cargo.toml:

  • rustls-tls - Enables TLS / HTTPS support using the rustls library.
  • native-tls - Enables TLS / HTTPS support using the native system TLS library.
  • http2 - Enables HTTP/2 support. Use this if you need to post data larger than 32MB.