feat: allow different paper size options (#434)

README.md

@@ -69,7 +69,7 @@ A function to print a PDF document.
    - `monochrome` (`boolean`, Optional): Prints the document in black and white. Default is `false`.
    - `side` (`string`, Optional): Supported names `duplex`, `duplexshort`, `duplexlong` and `simplex`.
    - `bin` (`string`, Optional): Select tray to print to. Number or name.
-   - `paperSize` (`string`, Optional): Specifies the paper size. Supported names `A2`, `A3`, `A4`, `A5`, `A6`, `letter`, `legal`, `tabloid`, `statement`.
+   - `paperSize` (`string`, Optional): Specifies the paper size. `A2`, `A3`, `A4`, `A5`, `A6`, `letter`, `legal`, `tabloid`, `statement`, or a name selectable from your printer settings.
    - `silent` (`boolean`, Optional): Silences SumatraPDF's error messages.
    - `printDialog` (`boolean`, Optional): displays the Print dialog for all the files indicated on this command line.
    - `copies`(`number`, Optional): Specifies how many copies will be printed.

src/print/print.spec.ts

@@ -120,17 +120,6 @@ describe("paper size", () => {
       );
     });
   });
-
-  it("throws when incorrect paper size provided", () => {
-    const filename = "assets/sample.pdf";
-    const options = {
-      paperSize: "foo",
-    };
-
-    return expect(print(filename, options)).rejects.toBe(
-      "Invalid paper size provided. Valid names: A2, A3, A4, A5, A6, letter, legal, tabloid, statement"
-    );
-  });
 });
 
 describe("orientation", () => {

src/print/print.ts

@@ -24,17 +24,6 @@ const validSubsets = ["odd", "even"];
 const validOrientations = ["portrait", "landscape"];
 const validScales = ["noscale", "shrink", "fit"];
 const validSides = ["duplex", "duplexshort", "duplexlong", "simplex"];
-const validPaperSizes = [
-  "A2",
-  "A3",
-  "A4",
-  "A5",
-  "A6",
-  "letter",
-  "legal",
-  "tabloid",
-  "statement",
-];
 
 export default async function print(
   pdf: string,
@@ -144,13 +133,7 @@ function getPrintSettings(options: PrintOptions): string[] {
   }
 
   if (paperSize) {
-    if (validPaperSizes.includes(paperSize)) {
-      printSettings.push(`paper=${paperSize}`);
-    } else {
-      throw `Invalid paper size provided. Valid names: ${validPaperSizes.join(
-        ", "
-      )}`;
-    }
+    printSettings.push(`paper=${paperSize}`);
   }
 
   if (copies) {