Submitting multiple scanned documents, receipts, or photos as a single file is a common requirement for forms and applications, but most photo apps only export one image at a time.
This guide covers how to combine images into a PDF for free, including page reordering and sizing options.
Key Takeaway: "Fit to Image" page sizing matches each PDF page exactly to its source image's dimensions, which avoids the awkward white borders that happen when a photo doesn't match A4 or Letter's aspect ratio.
Choosing a Page Size
| Page size | Best for |
|---|---|
| A4 / Letter | Documents meant to be printed, forms, scanned paperwork |
| Fit to Image | Photos and screenshots where you want no white border at all |
Tip: Add all your images first, then reorder by dragging — it's much faster than trying to upload them in the exact final order from the start.
Step by Step: How to Combine Images into a PDF
TinyPNG Now includes a free images-to-PDF tool that runs entirely in your browser.
- Open the Images to PDF tool and drag in multiple images at once.
- Drag any thumbnail to reorder it before creating the PDF.
- Pick a page size (A4, Letter, or Fit to Image), orientation, and margin.
- Click Create PDF to generate and download the combined file.
Frequently Asked Questions
How many images can I combine?
Any number — there's no fixed limit, though very large batches will take longer to process since everything runs in your browser.
Can I change the order of pages?
Yes. Drag and drop any image thumbnail to reorder it before creating the PDF — the page number updates automatically.
What page sizes are supported?
A4, Letter, or Fit to Image, which sizes each PDF page exactly to match its source image instead of a standard paper size.
Is the Images to PDF tool free?
Yes, completely free with no signup and no limits.
Are my images uploaded to a server?
No. The PDF is generated entirely in your browser using jsPDF. Your images are never uploaded anywhere.
Summary: Open the free TinyPNG Now images-to-PDF tool, reorder if needed, create PDF — free, private, and instant.