A folder of images is awkward to hand to someone. A PDF is one file, opens everywhere, prints predictably, and — the part people actually care about — holds a fixed order. That is why scanned pages, photo sets, receipt photos, and exported design frames so often get assembled into a PDF before they go anywhere.

Table of Contents Why generate PDFs in the browser Prerequisites Add an image to a new PDF Add an image to an existing PDF Scaling and positioning Add images to multiple pages Download the result FAQ See Also Install with NPM Related Links DownloadSpire.Office for JavaScript text When your React app builds PDFs on the fly — an invoice that needs a company logo, a report with an embedded chart, a certificate carrying a signature — you have to place raster images onto the page programmatically. Plain JavaScript can't write into a PDF's internal structure, and standing up a backend…