Fit All Worksheet Columns on Single PDF Page with Node.js via C++

Sometimes you want to generate a PDF file that fits all of a worksheet’s columns onto one page. The PdfSaveOptions.getAllColumnsInOnePagePerSheet() property provides this feature in a very easy-to-use manner. Complex calculations such as the height and width of the output PDF are handled internally and are based on the data in the worksheet.

Fit Worksheet Columns on Single PDF Page

PdfSaveOptions.getAllColumnsInOnePagePerSheet() ensures that all columns in a worksheet are rendered to a single PDF page, although rows may expand to several pages depending on the data in the worksheet.

The sample code below shows how to use the PdfSaveOptions.getAllColumnsInOnePagePerSheet() property to render a large worksheet of 100 columns.

const path = require("path");
const AsposeCells = require("aspose.cells.node");

// The path to the documents directory.
const dataDir = path.join(__dirname, "data");
// Create and initialize an instance of Workbook
const workbook = new AsposeCells.Workbook(path.join(dataDir, "TestBook.xlsx"));
// Create and initialize an instance of PdfSaveOptions
const saveOptions = new AsposeCells.PdfSaveOptions();
// Set AllColumnsInOnePagePerSheet to true
saveOptions.setAllColumnsInOnePagePerSheet(true);
// Save Workbook to PDF format by passing the object of PdfSaveOptions
const outputFilePath = path.join(dataDir, "output.out.pdf");
workbook.save(outputFilePath, saveOptions);

When a given worksheet has many columns, the rendered PDF file may display the content at a very small size. It remains readable when scaled up in a viewing application such as Acrobat Reader.

If your spreadsheet contains formulas, it is best to call Workbook.calculateFormula() just before rendering the spreadsheet to PDF format. Doing so will ensure that the formula‑dependent values are recalculated, and the correct values are rendered in the PDF.