<!--  As an open source project with a dedicated but small maintainer team, it can sometimes take a long time for issues to be addressed so please be patient and we will get back to you as soon as we can.
-->

### Preflight Checklist
<!-- Please ensure you've completed the following steps by replacing [ ] with [x]-->

* [x] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
* [x] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
* [x] I have searched the issue tracker for a feature request that matches the one I want to file, without success.

### Problem Description
<!-- Is your feature request related to a problem? Please add a clear and concise description of what the problem is. -->

They is no way to choose the paper format (A4, A3, Letter, ...) when printing with `webContents.print()`.

### Proposed Solution
<!-- Describe the solution you'd like in a clear and concise manner -->

Add something like the `pageSize` option which is available in [`webContents.printToPDF()`](https://electronjs.org/docs/api/web-contents#contentsprinttopdfoptions-callback).

shell/browser/api/electron_api_web_contents.cc
v8::Isolate* isolate,
    content::Ws* ontents) {
  auto existing = From(isolate, ontents);
  if (!existing.IsEmpty())
    return existing;
  else
    return gin::CreateHandle(isolate, new Ws(isolate, ontents));
}
e api
e electron
namespace {
using electron::api::Ws;
void Initialize(v8::Local<v8::Object> exports,
                v8::Local<v8::Value> unused,
                v8::Local<v8::Context> context,
                void* priv) {
  v8::Isolate* isolate = context->GetIsolate();
  gin_helper::Dictionary dict(isolate, exports);
  dict.Set("Ws", Ws::GetConstructor(isolate)
                              ->GetFunction(context)
                              .ToLocalChecked());
  dict.SetMethod("create", &Ws::Create);
  dict.SetMethod("fromId", &Ws::FromWeakMapID);
  dict.SetMethod("getAllWs", &Ws::GetAll);
}
e
NODULE_CONTEXT_AWARE(atom_browser_ontents, Initialize)