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showText doesn't work (out of the box) with EmbeddedFont #22

Description

@artbot1

currently i have the follwing to do

ops.showText(encodeCustom('Hello World', fontCustom)),

with

`// adapted from
// api/pdf-page.ts
// private encodeTextForFont(text: string, font: FontInput): PdfString {
function encodeCustom(text: string, font: FontInput): PdfString {
if (typeof font === "string") {
throw new Error()
}

const gids = font.encodeTextToGids(text)
const bytes = new Uint8Array(gids.length * 2)

for (let i = 0; i < gids.length; i++) {
	const gid = gids[i]
	bytes[i * 2] = (gid >> 8) & 0xff
	bytes[i * 2 + 1] = gid & 0xff
}

return PdfString.fromBytes(bytes)

}`

otherwise the text won't show up ...

what about a second (optional) font parameter to showText

ops.showText('Hello World', fontCustom)

which would do the encoding transparently ...

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