auto-thumbnail 0.1.0

Converts various file formats into thumbnail image.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

use std::path::Path;

use image::DynamicImage;
use pdfium_render::prelude::{PdfRenderConfig, Pdfium, PdfiumError};

pub(crate) fn create_thumbnail<P>(path: P, width: u32, height: u32) -> anyhow::Result<DynamicImage>
where
    P: AsRef<Path>,
{
    let pdfium = get_pdfium()?;
    let document = pdfium.load_pdf_from_file(&path, None)?;
    let render_config = PdfRenderConfig::new();
    let first_page = document.pages().first()?;
    let img = first_page.render_with_config(&render_config)?.as_image();

    let resized = img.thumbnail(width, height);

    Ok(resized)
}

fn get_pdfium() -> Result<Pdfium, PdfiumError> {
    let lib = Pdfium::bind_to_library(Pdfium::pdfium_platform_library_name_at_path("./"))
        .or_else(|_| Pdfium::bind_to_system_library())?;
    Ok(Pdfium::new(lib))
}