Printing PDFs has a cross-platform solution: Ghostscript

[lchjczw]

There is a cross-platform solution for printing PDF files: Ghostscript.

Here are three implementation options:

Option 1: Cross-platform via Ghostscript's WASM implementation: Ghostscript WASM The advantage is ease of integration.

Option 2: Cross-platform via Ghostscript API binding: https://github.com/albel727/rust-ghostscript

Option 3: Cross-platform via Ghostscript's binary file, using the command line: gs -dBATCH -dNOPAUSE -sDEVICE=pswrite -sOutputFile=%printer%printer_name input.pdf

Two approaches:

Convert the PDF to a PS file, and then send the PS file to the printer (Option 1, Option 2, and Option 3 can all be used). Send the PDF directly to the printer using Ghostscript (Option 1 might require WASI, but Option 2 and Option 3 can both do this).

Overall, Option 2 is the best.

打印PDF文件的跨平台方案有ghostscript。

这里有两个实现方案：

方案1：通过ghostscript的wasm实现跨平台： ghostscript wasm 优点是接入比较方便

方案2：通过ghostscript的api bind实现跨平台： https://github.com/albel727/rust-ghostscript

方案3：通过ghostscript的二进制文件，通过命令行： gs -dBATCH -dNOPAUSE -sDEVICE=pswrite -sOutputFile=%printer%printer_name input.pdf

两种思路： 1.将PDF转为ps文件，然后将ps文件发送给打印机 （方案1和方案2，方案3都可以） 2.直接ghostscript将PDF发送到打印机（方案1可能需要wasi，方案2和方案3都可以）

综合来看，方案2是最好的

[lchjczw]

Ghostscript supports static compilation.

[lchjczw]

CUPS printing PDF files relies on Ghostscript.

[jonahgeorge]

I believe this would require re-licensing the project as AGPL?

https://www.ghostscript.com/licensing/

[lchjczw]

Rust Bind can use dynamic linking or

or use dynamic linking ，Only as an optional dependency, in compliance. rust-printers does not enforce binding to Ghostscript, and the user assumes responsibility for AGPL obligations.

Clearly distinguish license responsibilities to ensure that users comply with AGPL requirements during integration.