How to Convert Image to PDF on Mac (Preview vs Browser — Complete Guide)
Mac users are lucky to have multiple free options for converting images to PDF — but the best choice depends on your situation. Preview is excellent for quick single-image conversions, but combining multiple images into one PDF using Preview is awkward and error-prone. LazyPDF in Safari or Chrome handles multi-image PDFs in a single drag-and-drop action. This guide covers three free methods for converting images to PDF on Mac: using LazyPDF in a browser, using Preview, and using the Print dialog. All three methods are free and work on macOS Monterey, Ventura, Sonoma, and Sequoia. For most users who need to regularly create PDFs from photos, screenshots, or scanned images, LazyPDF is the fastest and most flexible option — especially for combining multiple images into one document.
Method 1: Convert Image to PDF on Mac Using LazyPDF (Fastest)
LazyPDF runs in Safari or Chrome on your Mac and converts images to PDF entirely in the browser. pdf-lib handles the PDF construction locally on your machine — no uploads, no server processing. You can drag images directly from Finder into the browser window, reorder pages by dragging the thumbnails, and download the completed PDF in seconds. This method handles JPEG, PNG, WebP, and other common formats, and lets you combine any number of images into a single PDF.
- 1Open Safari or Chrome on your Mac and go to lazy-pdf.com/en/image-to-pdf
- 2Drag image files from a Finder window directly into the browser upload zone — or click to browse
- 3Your images appear as page previews — drag thumbnails to reorder pages in the PDF
- 4Click 'Convert to PDF' to generate the document using pdf-lib in the browser
- 5Click Download — the PDF saves to ~/Downloads and opens immediately in Preview if you double-click it
Method 2: Convert Image to PDF Using Mac Preview
Preview can create PDFs from images natively on Mac. For a single image: open it in Preview, then go to File → Export as PDF. For multiple images combined into one PDF: open all images in Preview (select them all in Finder and right-click → Open With → Preview). In Preview, make sure the Thumbnails sidebar is visible (View → Thumbnails). Select all thumbnails with ⌘+A, then go to File → Print → select 'PDF' dropdown at bottom left → Save as PDF. This prints all images as pages in one PDF. It's free and native, but the multi-image workflow is non-obvious and Preview sometimes reorders pages unexpectedly.
Method 3: Use the Print Dialog on Mac
Any Mac application that can display images — including Preview, Photos, and even Safari — can print to PDF using macOS's built-in Print to PDF feature. Open your image (or select multiple images in Photos and print them together), press ⌘+P to open the Print dialog, then click the PDF dropdown in the bottom-left corner and choose 'Save as PDF'. This method is useful when you're already working in the Photos app and want to export a selection as a PDF quickly. The limitation is that the page layout follows the print settings, which may add margins or scale the image differently than you'd like.
When to Use LazyPDF vs Preview on Mac
Use Preview when you need a quick single-image PDF and already have the image open in Preview — it's just File → Export as PDF and done. Use LazyPDF when you need to combine multiple images into one PDF, when you want to control page order precisely, when you're working with many images at once, or when you want to ensure no application retains any data about your images. LazyPDF is also better when you need to share the resulting PDF immediately — the download completes in your browser and you can open Safari's download list to share the file right away through the share sheet.
Organizing Mac Photos Into PDF Documents
A common Mac workflow involves selecting photos from the Photos app to create a PDF — for example, a photo album, an event recap, or a set of travel photos to share. The quickest way to do this from Photos: export the selected images (File → Export → Export Photos) to a folder, then drag them all into LazyPDF in Safari or Chrome. LazyPDF loads them as page previews, you arrange the order, and convert. Alternatively, use Photos' built-in book or slideshow export features, though those require more setup. For a simple, ordered photo PDF, the LazyPDF approach takes about 60 seconds from export to download.
Frequently Asked Questions
How do I combine multiple photos into one PDF on Mac for free?
The easiest free method is LazyPDF in Safari or Chrome. Go to lazy-pdf.com/en/image-to-pdf, drag all your photos into the upload zone, arrange them in the order you want using the drag-and-drop previews, then click Convert and Download. The alternative is to open all images in Preview simultaneously, select all thumbnails, and print to PDF — but this method is less intuitive and gives you less control over page order.
Can I convert HEIC photos to PDF on Mac using LazyPDF?
Yes. Safari on Mac handles HEIC image files natively — macOS decodes them before passing the image data to LazyPDF. If you're using Chrome on Mac, Chrome may not support HEIC directly. In that case, either use Safari for HEIC images, or export the photos from the Photos app as JPEG first (File → Export → Export Photos → JPEG format). LazyPDF will then handle the JPEG files without any issues in either browser.
Does LazyPDF compress images when creating a PDF on Mac?
LazyPDF embeds images into the PDF with high quality settings. JPEG images are embedded preserving their original compression level. PNG images are embedded losslessly. The resulting PDF file size will be proportional to the number and resolution of your images. If you need a smaller PDF file after creation, you can use LazyPDF's free Compress PDF tool to reduce the file size while maintaining acceptable visual quality for most use cases.