Is there a way to get the exact Google Sheets page size in inches to use as a size parameter when sa-CodePudding

To generate the PDF, we can use combined inches to produce the page size:

  var theurl = 'https://docs.google.com/a/mydomain.org/spreadsheets/d/'  
    'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'    //the file ID
      '/export?exportFormat=pdf&format=pdf'  
        '&size=7x6.7'  
          '&portrait=true'  
            '&fitw=true'   
              '&top_margin=0'              
                '&bottom_margin=0'           
                  '&left_margin=0'          
                    '&right_margin=0'       
                      '&sheetnames=false&printtitle=false'  
                        '&pagenum=false'  
                          '&gridlines=false'  
                            '&fzr=FALSE'  
                              '&gid='  
                                'XXXXXXXXXXXXXXXXXXXXXX'; //the sheet's ID

  var token = ScriptApp.getOAuthToken();
  var docurl = UrlFetchApp.fetch(theurl, { headers: { 'Authorization': 'Bearer '    token } });
  var pdfBlob = docurl.getBlob();

  var fileName = 'test';
  var newFile = DriveApp.createFile(pdfBlob).setName(fileName);  

  if (DriveApp.getFoldersByName("archives").hasNext()){
    var folder = DriveApp.getFoldersByName("zovo").next();

  } else {
    var folder = DriveApp.createFolder("archives");
  }

  folder.addFile(newFile);
  DriveApp.removeFile(newFile);

Specifying the size in:

'&size=7x6.7'

PDF Result (white background and black cells):

But if any row or column changes its size, the page already loses its exact size and if it gets bigger it will go beyond the PDF page limit and if it gets smaller it will create an empty margin.

For example:

If any column shrinks in size, this will happen (white background and black cells):

If any lines decrease in size, this will happen (white background and black cells):

Is there a way to calc the size of a spreadsheet page in inches to use as a page size parameter to create a PDF?

After running the script, I got:

Upon applying the values to the export link you provided, I got the following as a result:

References

You may browse the following references for more information:

Comprehensive guide