Combining multiple images into a single PDF is one of the more common everyday PDF tasks — packaging a set of photos, assembling a multi-page scan, or bundling screenshots into a single document for sharing. Most platforms have at least one built-in way to do this, and a browser tool handles any case the built-in options don't cover.
On Mac: Select All Images in Preview
In Finder, select all the image files you want to combine — click the first, then Shift-click or Command-click the rest. Right-click and choose Open With → Preview. Preview opens all the selected images as a single document with each image on its own page. Drag thumbnails in the sidebar to reorder if needed, then go to File → Export as PDF. Done.
The page order follows the selection order in Finder, which is typically alphabetical or sorted by date depending on how the folder is sorted. If you need a specific order, rename the files with numbered prefixes before selecting them — 01_image.jpg, 02_image.jpg, and so on — so they sort correctly.
On Windows: Print Multiple Images to PDF
Select all the images in File Explorer, right-click, and choose Print. In the print dialog, select Microsoft Print to PDF as the printer and choose a layout — you can put one image per page or arrange multiple images per page depending on the layout options shown. Click Print and save the file. For one image per page, choose the full-page photo layout.
Windows' built-in photo printing arranges images to fit the page, which may add white borders around images that don't match the page aspect ratio. If you need edge-to-edge images with no borders, a browser tool gives more control.
Browser Tool: Most Control Over the Result
WukongPDF's Image to PDF tool accepts multiple image uploads at once — JPG, PNG, WebP, TIFF, and other common formats. Upload all the images, drag to set the order, choose the page size and whether images should fill the page or have margins, and download. This works on any device with a browser and gives you explicit control over the output that the built-in OS methods don't.
For larger batches — 20 or more images — the browser tool is also more practical than the Preview or Windows methods, which become unwieldy when you're working with many files. Upload everything at once, reorder as needed, and get a single PDF out.
On iPhone and Android
On iPhone, select multiple photos in the Photos app, tap Share, then Print, and use the pinch-to-zoom trick on the print preview to open it as a PDF — all selected photos combine into a multi-page PDF. On Android, Google Photos' print-to-PDF function handles multiple selections in the same way. Both methods produce a PDF with one image per page in the order selected.
For more control on mobile — choosing page size, margins, or combining images from different apps rather than just Photos — opening the browser tool in Safari or Chrome on mobile and uploading from there is more flexible than the built-in OS options.
File Size After Combining
A PDF made from many high-resolution photos can be large — camera JPEGs can be 4-8MB each, and a 20-photo PDF could easily be 100MB+. If the combined PDF needs to be shared by email or uploaded somewhere with a size limit, run it through a PDF Compression tool afterward. Most photo-based PDFs compress significantly without visible quality loss for screen viewing.