OpenSign/apps/OpenSignServer/cloud/parsefunction/pdf/customSignPdf/removeTrailingNewLine.min.js

import SignPdfError from"./SignPdfError.min.js";const sliceLastChar=(r,e)=>{return r.slice(r.length-1).toString()===e?r.slice(0,r.length-1):r},removeTrailingNewLine=r=>{if(!(r instanceof Buffer))throw new SignPdfError("PDF expected as Buffer.",SignPdfError.TYPE_INPUT);r=sliceLastChar(r,"\n");if("\n%%EOF"!==(r=sliceLastChar(r,"\r")).slice(r.length-6).toString())throw new SignPdfError("A PDF file must end with an EOF line.",SignPdfError.TYPE_PARSE);return r};export default removeTrailingNewLine;