How to convert images to PDF from Windows, Mac, Android, and iPhone

Converting an image to PDF is a simple and useful operation in many situations: sending documents, optimizing files, preparing them for printing, or turning photos into a single shareable file. In this guide, you’ll find all the free solutions to do this on Windows, Mac, Android, and iPhone, without installing complicated software.

Conversione di immagini in PDF tramite strumenti digitali su diversi dispositivi

Autore: | Pubblicato il: 18 December 2025 | Categoria: Graphics | Tag:

Converting an image to PDF has become an essential operation in digital work, in school, in bureaucracy, and in daily document management. Whether it’s a photo taken on the fly, a scanned paper document, a receipt, or a screenshot, turning an image into a PDF allows you to obtain a file that is more organized, compact, easy to share, and often required by offices, institutions, and online platforms.

The PDF is indeed one of the most stable and universal formats, readable on any device and perfect when you need to ensure the content is not altered. In this guide, we look at all the methods — free, immediate, and available on Windows, Mac, Android, and iPhone — to convert images into PDFs without using complex software.

If you often work with photos and digital documents, you might also find other guides dedicated to image and metadata management useful, such as the reading EXIF data, the removal of sensitive data or the geolocation of photos. All elements that can influence a file’s privacy before conversion.

1. Why converting images to PDF is so useful

The PDF is a recognized and used standard worldwide. Converting a photo or a set of images into a PDF offers numerous advantages:

  • uniformity: the file appears the same on all devices and operating systems;
  • professionalism: it is the format required by many offices, platforms, and companies;
  • order: multiple images can be combined into a single file;
  • lightness: often a PDF weighs less than multiple separate images;
  • protection: the content is not accidentally modified;
  • compatibility: it is supported by any modern app or browser.

Whether it is a photo taken for work or a scanned image, turning it into a PDF is always a good idea.

2. How to convert images to PDF on Windows

Windows includes a native feature that allows you to convert any image to PDF without installing anything. It is one of the simplest methods available.

Method 1: “Print to PDF”

  1. Open the image with Photos or Image Viewer.
  2. Press Ctrl + P or go to File → Print.
  3. Select the printer Microsoft Print to PDF.
  4. Confirm and choose where to save the file.

You can also combine multiple images by selecting them all and printing them into a single PDF.

Method 2: free tools

Among the simplest:

  • IrfanView: lightweight, free, very fast;
  • GIMP: exports any image to PDF;
  • XnView: perfect for batch converting many images.

3. How to convert images to PDF on macOS

Macs have a very powerful built-in feature through the Preview app.

Method 1: Preview

  1. Open the image in Preview.
  2. Go to File → Export as PDF.
  3. Choose the name and location.

To create a single PDF with multiple images:

  1. Select all images in Finder;
  2. Open them in a single Preview window;
  3. Drag them in the desired order;
  4. Export as PDF.

Method 2: Automator

Automator allows you to create automatic workflows to convert entire folders of images to PDF. Useful for heavy use.

4. Convert images to PDF from iPhone

iPhones offer multiple built-in methods, no external apps needed.

Method 1: Photos App + Print PDF

  1. Open the photo.
  2. Tap Share.
  3. Choose Print.
  4. Pinch the preview to convert it to PDF.
  5. Tap Share → Save to Files.

Method 2: Files

If the photo is already in the Files app:

  1. Press and hold the file.
  2. Choose Create PDF.

Very quick method.

5. Convert images to PDF on Android

On Android the easiest method is Google Drive.

Method 1: Google Drive

  1. Open Google Drive.
  2. Tap “+” → Scan.
  3. Upload or take the picture.
  4. Drive immediately creates a PDF.

Method 2: Google Photos

Some Android models allow direct conversion via the Print function:

  1. Open the photo.
  2. Tap Print.
  3. Choose Save as PDF.

6. Convert images to PDF online

If you prefer an immediate solution:

  • SmallPDF
  • iLovePDF
  • PDF24 Tools

These services also allow you to:

  • combine multiple images;
  • resize;
  • optimize the PDF.

Great if you don’t want to install anything.

7. Attention to metadata and privacy

Before converting a photo to PDF, remember that images can contain sensitive data such as:

  • GPS location;
  • date and time of capture;
  • device model.

To learn more:

Conclusion

Converting an image to PDF is a simple operation accessible to everyone, regardless of the device used. Windows, macOS, Android, and iPhone offer integrated solutions and free tools that allow you to obtain neat, lightweight PDFs perfectly compatible with any platform.

Whether you need to send an official document, archive receipts, or turn photos into a single convenient file to share, this guide lets you do it in seconds and without expensive software.

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