How to Combine Multiple Images Into One PDF
PDF is the right format for sharing a sequence of images that need to stay in order: receipts, contracts, photo evidence, ID scans. Here is how to combine them in your browser without uploading sensitive documents to a third party.
Most "images to PDF" tools upload your files to a server, generate the PDF there, and send it back. For phone-scanned receipts, ID documents, signed contracts, or any image you would not email to a stranger, that upload is exactly the problem you are trying to avoid.
A modern browser can build the PDF locally. Your images never leave the device. The resulting PDF is a normal PDF, openable in any reader, attachable to any email, uploadable to any tax portal.
When PDF is the right format
- Receipts and expense reports. Tax software almost always accepts PDF; many will not accept loose images. One PDF per trip or per month is far easier to file than 30 JPGs.
- Document scans. Photos of contracts, IDs, or hand-signed forms read more naturally as a single multi-page PDF than as a folder of images.
- Photo evidence sequences. Insurance claims, before/after construction photos, accident documentation. The chronological order matters and PDF preserves it.
- Email-friendly bundles. Most email providers cap attachments at 25 MB and dislike many small files. One compressed PDF is a single attachment.
Order, page size, and orientation
The order you add the images is the order they appear in the PDF. Drag to reorder before generating. Pick a page size (A4 for international, Letter for US, "Fit" to size each page to the image). Mixed-orientation pages (some landscape, some portrait) are fine, each image gets the orientation that fits it best when you choose "Fit".
File size
Combining 20 phone photos into a PDF can produce a 40+ MB file if the images are uncompressed. Two practical paths:
- Lower the image quality before combining (quality 80 JPG is usually invisible from a reader's perspective and roughly halves the size).
- Combine first, then run the result through a PDF compressor which downsamples embedded images to a sensible DPI.
Combine in your browser
Use Images to PDF. Drag images in, reorder them, pick the page size, hit Generate. The PDF builds in JavaScript and downloads directly, nothing is uploaded. Works with JPG, PNG, WebP, and HEIC.
Try Images to PDF, free in your browser
No uploads, no account. Your images never leave your device.
Open Images to PDF