PNG images are excellent for screenshots, digital graphics, scanned documents, and images containing fine details. However, when you need to share several images as one document, prepare a file for printing, or submit paperwork online, PDF is often more convenient. This guide explains how to convert PNG to PDF with five easy methods.
If you're wondering how to convert PNG to PDF, you have several options. You can use a free online converter, built-in Windows tools, Mac Preview, or features available on your smartphone.
In this guide, you'll learn five practical methods to convert PNG files into PDF documents, combine multiple images into one PDF, and maintain image quality.
Quick Answer: How Do You Convert PNG to PDF?
The easiest way is to use an online PNG to PDF converter.
Open the OneFileKit PNG to PDF Converter.
Upload one or more PNG images.
Arrange your images in the desired order.
Select the available PDF page settings.
Convert and download your PDF.
You can also create a PDF without uploading your images to a website by using built-in operating system features.
Method 1: Convert PNG to PDF Online with OneFileKit
An online converter is convenient when you want to combine images into a PDF without installing additional software.
Step 1: Open the PNG to PDF converter
Visit OneFileKit PNG to PDF.
The converter provides an upload area where you can select images from your device.
Step 2: Upload your PNG images
Click Choose Images or drag and drop your files into the upload area.
If you're converting multiple PNG images, select all the images you want to include.
Step 3: Arrange the images
Organize the images in the order you want them to appear in the PDF.
For example, if you're combining scanned pages of a document, arrange them from the first page to the last.
Step 4: Choose PDF settings
Depending on the available options, you can choose:
Paper size such as A4 or Letter.
Portrait or landscape orientation.
Page margins.
Image fitting and quality settings.
Step 5: Convert and download
Click Convert to PDF and wait for processing to finish.
Download the resulting PDF file to your computer or mobile device.
This method is useful for combining screenshots, receipts, scanned documents, and other images into a single PDF.
Method 2: Convert PNG to PDF on Windows 10 or Windows 11
Windows includes a built-in feature called Microsoft Print to PDF, which allows you to create PDF documents from images without installing a separate converter.
Step 1: Open your PNG image
Locate the PNG image on your Windows computer and open it in an application that supports printing, such as Photos.
Step 2: Open the Print menu
Press Ctrl + P or choose Print from the application's menu.
Step 3: Select Microsoft Print to PDF
In the printer selection menu, choose Microsoft Print to PDF.
Step 4: Adjust the page layout
Select the paper size, orientation and image-fitting options available in the print dialog.
Check the preview to make sure the image is not cropped unexpectedly.
Step 5: Save your PDF
Click Print, choose a destination folder, enter a filename, and save the document.
Your PNG image is now stored in a PDF file.
How to combine multiple PNG images into one PDF on Windows
In File Explorer, select multiple PNG files, right-click and choose the image printing option if it is available. Select Microsoft Print to PDF and choose an appropriate layout.
The available menu options may vary depending on your Windows version and default applications. Check the image order and page layout before saving.
Method 3: Convert PNG to PDF on Mac Using Preview
macOS includes Preview, a built-in application for viewing and working with images and PDFs.
Step 1: Open the PNG image
Locate your PNG file in Finder and open it using Preview.
Step 2: Choose Export as PDF
In Preview, open the File menu and select Export as PDF, where available.
Step 3: Choose the filename and location
Enter a filename and select the folder where you want to save your PDF.
Step 4: Save the converted document
Click Save to create the PDF file.
How to combine multiple PNG files on Mac
Open the images in Preview and enable the thumbnail sidebar. If the images open in separate windows, bring them into one Preview document using the thumbnail sidebar.
Arrange the thumbnails in your preferred order, select the images you want to include, and use the Print dialog's PDF saving option to create a multipage PDF.
Review the output to confirm that all pages appear in the correct order.
For more information, see Apple's official Preview User Guide.
Method 4: Convert PNG to PDF on iPhone or iPad
You can create PDFs from images on an iPhone or iPad using built-in sharing and printing features.
Step 1: Open the Photos app
Find the PNG image you want to convert.
Step 2: Select the image
Open the image and tap the Share button.
Step 3: Choose Print
Select Print from the available sharing actions.
Step 4: Open the PDF preview
Use the print preview's expand gesture or available sharing controls to open the printable document as a PDF.
The exact interface may vary by iOS version.
Step 5: Save to Files
Use the Share menu to save the PDF to the Files app.
Alternatively, you can open OneFileKit's online PNG to PDF converter in Safari to combine multiple images with available layout controls.
Method 5: Convert PNG to PDF on Android
Many Android devices offer a PDF saving option through the system print menu.
Step 1: Open your PNG image
Open the image using Google Photos, Gallery, or another compatible image viewer.
Step 2: Open the Print option
Choose Print from the application's menu or sharing options.
Step 3: Select Save as PDF
In the printer destination menu, choose Save as PDF.
Step 4: Adjust document settings
Choose the available paper size and orientation settings.
Step 5: Save the PDF
Tap the PDF/save button, choose a folder, and save the document.
Android menus vary between manufacturers and app versions. If your image viewer doesn't offer PDF printing, use a compatible browser-based converter.
How to Combine Multiple PNG Images into One PDF
Combining images into a PDF is useful when you have several files that belong together.
Common examples include scanned receipts, handwritten notes, assignments, ID document scans, presentation slides, and screenshot collections.
For the best result, arrange your PNG images in the correct sequence before conversion.
If you have five PNG files representing five document pages, the output should contain five PDF pages in the same order.
An online converter with drag-and-drop ordering can make this easier, particularly when the original filenames aren't in the correct sequence.
How to Convert PNG to PDF Without Losing Quality
PNG uses lossless compression, meaning it preserves the original pixel data without the compression artifacts associated with lossy formats such as JPEG.
However, converting PNG to PDF can involve resizing, resampling or recompression, depending on the software and settings used.
To preserve quality:
Start with high-resolution source images.
Avoid enlarging low-resolution images.
Choose a page size appropriate for your content.
Use high-quality settings when available.
Avoid unnecessary lossy recompression.
Check the finished PDF at normal viewing and printing sizes.
For scanned documents, text clarity is especially important. A small source image may look acceptable on a phone but appear blurry when printed.
If the finished PDF is too large, you can use a PDF compressor afterward, while checking that compression hasn't reduced important image details.
PNG vs PDF: What's the Difference?
Feature | PNG | |
|---|---|---|
File type | Raster image | Document format |
Multiple pages | No native multipage support | Yes |
Transparency | Supported | Depends on content |
Printing | Possible | Designed for document workflows |
Text editing | Text is usually part of the image | Depends on PDF content |
Best for | Graphics and screenshots | Sharing and printing documents |
PNG is generally suitable for individual graphics and screenshots.
PDF is often better when you want to combine several images into one document, maintain a consistent page layout, or share printable paperwork.
Converting an image into a PDF does not automatically make the text inside it editable.
Common Problems When Converting PNG to PDF
The image looks blurry
This usually happens because the original image has insufficient resolution, has been enlarged, or has undergone lossy recompression.
Try using a higher-resolution source image and suitable output settings.
The image is cropped
Check the selected page size, margins and fitting options.
A fill or crop mode may remove parts of an image to occupy the entire page. Use a fit or contain option when you need the whole image visible.
The PDF file is too large
Large PNG images can produce large PDF documents, particularly when several high-resolution images are combined.
Consider reducing unnecessary image dimensions or using appropriate compression settings.
The pages are in the wrong order
Rearrange the source images before conversion, or use a converter that allows page ordering.
Transparent areas appear white
Some PDF generation workflows place transparent images over a white page background. Transparency handling depends on the conversion method and document settings.
Check the output before relying on transparency.
Final Thoughts
Converting PNG to PDF is straightforward, whether you use an online converter or tools already available on your computer or phone.
For a single image, Windows Print to PDF or Mac Preview may be sufficient. For multiple images, a converter with page-ordering and layout controls can make the process more convenient.
If you want to combine several images into one document, try the free OneFileKit PNG to PDF Converter and download your PDF when it's ready.
You can also explore JPG to PDF, Merge PDF, and PDF to PNG for related document tasks.
