The simplest way to make a PDF from images

You can turn photos or screenshots into a PDF on almost any device without paying for software. On Windows, use the built-in Print to PDF feature: open your image file, press Ctrl+P, select "Microsoft Print to PDF" as your printer, and click Print. On Mac, open the image in Preview, go to File > Export As, change the format dropdown to PDF, and save. On a phone or tablet, most photo apps let you share directly to PDF — look for a "save as PDF" or "export" option in the share menu.

If you have multiple images and want them in one PDF, the process depends on what you're starting with. A folder of photos needs a different approach than a single screenshot. The method also changes based on whether you want the images in a specific order, at a particular size, or with any text added.

Key Takeaways

  • Windows and Mac both have free built-in tools to convert a single image to PDF without downloading anything new.
  • Combining multiple images into one PDF requires either a dedicated tool or a workaround like printing to PDF from a document editor.
  • Free online converters work quickly for one or two images but upload your files to someone else's server, so avoid them for sensitive documents.
  • The order, size, and spacing of images in your final PDF depend on which tool you use, so test with a small batch first.

Converting a single image on Windows

Right-click the image file, select Open With, and choose Photos or any image viewer. Once the image is open, press Ctrl+P to open the Print dialog. In the printer dropdown, select "Microsoft Print to PDF". You can adjust the page size and orientation here — landscape works better for wide photos, portrait for tall ones. Click Print, choose where to save the file, give it a name, and you're done.

If you want to resize the image or add margins before converting, open it in Paint (search for Paint in the Windows Start menu), make your changes, then use the same Print to PDF method. This gives you more control over how the image appears on the page.

Converting a single image on Mac

Open the image in Preview — the default photo viewer on Mac. Go to File in the menu bar, then Export As. A dialog will appear. In the Format dropdown near the bottom, select PDF. Choose where you want to save it, name the file, and click Save. Preview handles the sizing automatically, but you can open the image in Preview's editing tools first if you need to crop or rotate it.

If the image is a screenshot, you can also use Mac's built-in screenshot tool. Press Shift+Command+5, take your screenshot, and a thumbnail appears in the corner. Click it, then click Markup in the toolbar, and look for a PDF option in the Tools menu.

Combining multiple images into one PDF

The easiest method on any device is to use a document editor. Open Google Docs (free, works in any browser), create a new document, and insert your images one by one: click Insert > Image, upload or select each photo, and arrange them in order. Once all images are in the document, click File > read > PDF Document. Google Docs will create a single PDF with all your images.

On Windows, you can also use Word the same way: create a new document, insert images via Insert > Pictures, arrange them, then File > Save As and choose PDF as the file type. On Mac, the same process works in Pages (Apple's word processor).

If you have a folder of images and want them combined without manually inserting each one, free desktop tools like IrfanView (Windows) or ImageMagick (Windows, Mac, Linux) can batch-convert multiple images to a single PDF. These require downloading software, but they're faster if you do this regularly. Search for the tool name plus "batch convert to PDF" to find instructions for your specific version.

Using online converters safely

Websites like Smallpdf, iLovePDF, and CloudConvert let you upload images and read a PDF without installing anything. They work quickly for one or two files. However, your images are uploaded to someone else's server, stored temporarily (or longer), and processed by their system. For personal photos or documents with any sensitive information, this is a real trade-off.

If you do use an online converter, check the site's privacy policy first — look for how long they keep files and whether they use your uploads for any other purpose. Many delete files after a few hours, but some keep them longer. For anything you wouldn't want shared, use the offline methods above instead.

Controlling image size, order, and spacing

When you convert images to PDF, the final appearance depends on the tool. Using Google Docs or Word gives you the most control: you can resize each image by dragging its corners, add space between them by pressing Enter, and reorder them by cutting and pasting. The PDF will look exactly like your document.

The Print to PDF method on Windows and Mac sizes images to fit the page automatically. If an image is too large, it may shrink or split across pages. If it's too small, it may appear with blank space around it. Test with one image first to see how it looks, then adjust your source image size if needed before converting the rest.

If you're combining images and want them all the same size in the PDF, resize them before combining — use Paint on Windows, Preview on Mac, or a free tool like Pixlr or Canva. Make all images the same width and height, then insert them into your document or converter. This creates a cleaner, more professional result.

Troubleshooting common problems

If Print to PDF isn't appearing in your printer list on Windows, make sure you're using Windows 10 or later — the feature isn't available in older versions. If you're on an older system, read a free tool like PDFtk or use Google Docs instead.

If your images appear blurry in the final PDF, the source image resolution is too low. PDFs preserve whatever quality you give them. Check the original image's resolution (right-click > Properties on Windows, or Command+I on Mac) — images under 150 DPI will look fuzzy when printed or viewed at full size. Use higher-resolution images if possible, or accept that the PDF will match the source quality.

If you're combining images and they're appearing in the wrong order, make sure you're inserting them in the correct sequence in your document editor. Some tools sort alphabetically by filename, so renaming images with numbers (01, 02, 03) before uploading can help.

Frequently Asked Questions

Can I convert a PDF back to images?

Yes. Use the same online converters (Smallpdf, iLovePDF) but select PDF to image instead of image to PDF. On Windows, you can also right-click a PDF, select Open With > Photos, and save individual pages as images. The quality depends on the original PDF resolution.

What image formats work for converting to PDF?

JPG, PNG, GIF, BMP, and TIFF all work with Print to PDF, Google Docs, and most online converters. PNG and TIFF preserve quality better than JPG, but JPG files are smaller. Use PNG or TIFF if the image contains text you need to read clearly.

Will the PDF file be smaller or larger than the original images?

Usually smaller. PDFs compress images automatically. If you combine ten 2 MB photos into one PDF, the result is typically 5 to 15 MB depending on the tool. Online converters often compress more aggressively than desktop tools.

Can I add text or signatures to images before converting to PDF?

Yes. On Windows, open the image in Paint and use the text tool. On Mac, open it in Preview, click the markup toolbar, and use the text tool. After adding text, use Print to PDF to convert. Alternatively, convert to PDF first, then use a free PDF editor like PDFtk or Sejda to add text afterward.

Is it safe to use free online PDF converters?

For non-sensitive images, yes — most delete files within hours. For documents with personal information, medical details, or anything you wouldn't share publicly, use the offline methods (Print to PDF, Google Docs, or desktop software) instead. You control where the file stays.