Combine PDFs and Images Into One File
Combining PDFs and images means assembling documents and pictures — in any mix — into a single PDF, with each image becoming its own page and each PDF contributing its pages unchanged. This tool accepts PDF, JPG, PNG, WEBP and SVG files in one re-arrangeable list, copies PDF pages losslessly, places images on A4, Letter or image-sized pages, and produces one merged PDF entirely in your browser.
How it works
The tool treats the two input types differently because they are fundamentally different things. A PDF already contains finished pages: page objects with content streams, fonts, and image XObjects. For those, the merger copies each page object — and everything the page references — from the source document into the output document. This is a graph copy, not a re-rendering: the content stream bytes, embedded fonts and compressed images travel across untouched, which is why merged PDF pages are pixel-identical to the originals and keep their selectable text. The only things rewritten are the object numbers and the page tree that stitches the pages into their new order.
An image, by contrast, has no page — it is just pixels (or, for SVG, vector drawing instructions). For each image in your list the tool creates a fresh page object, embeds the image as an XObject in the output file, and writes a one-line content stream that draws that XObject scaled onto the page. JPG data is embedded directly using PDF's native DCTDecode filter, so the exact bytes of your photo end up inside the PDF with no generation loss. PNG becomes a losslessly encoded image with its alpha channel mapped to a PDF soft mask, so transparency survives. WEBP and SVG have no native PDF encoding, so the browser first decodes them to pixels on your device, then embeds the result losslessly.
Page sizing is your choice per merge: fit every image inside an A4 (210 × 297 mm) or US Letter frame — the image is centered and scaled down proportionally, never stretched — or create each page at exactly the image's own dimensions at 96 DPI, which gives a borderless, margin-free page. Pages coming from PDFs always keep their original media box; only the image-derived pages are affected by the setting.
If every file you want to combine is already a PDF, the dedicated Merge PDF tool does the same lossless page copy with a simpler interface. This page exists for the mixed case — the scanned contract plus the photographed receipt — that would otherwise force you to convert images to PDF first and merge second.
Worked example: an expense report from mixed files
A consultant needs to submit one PDF containing a 3-page expense summary (summary.pdf, 180 KB), four photographed receipts from a phone (JPGs between 1.8 and 2.6 MB each, 4032 × 3024 px), and a 1-page card statement export (statement.pdf, 95 KB). She drops all six files into the list, drags the statement to the end, and chooses A4 pages for images. The merge takes about two seconds and produces a 9.1 MB, 8-page PDF: pages 1–3 are the summary with its text still selectable, pages 4–7 are the receipts centered on A4, and page 8 is the statement. The output is almost exactly the sum of the input sizes — 9.3 MB of inputs against 9.1 MB out — because nothing was recompressed; the small saving comes from shared structural overhead. Choosing "image-sized pages" instead would have produced four 4032 × 3024 pt receipt pages with no white margins.
Frequently asked questions
Can I combine a PDF and a JPG into one file without converting the JPG first?
Yes. Add the PDF and the JPG to the same list on this page and the tool builds one PDF, turning the JPG into its own page automatically. There is no separate image-to-PDF step to run first.
Does merging reduce the quality of my PDF pages or images?
No. PDF pages are copied object-for-object without re-rendering, and JPG, PNG and WEBP images are embedded with their original pixel data. Nothing is recompressed, so quality is identical to the inputs.
What image formats can I merge with PDFs here?
JPG, PNG, WEBP and SVG, alongside any number of PDF files. WEBP and SVG are converted to a PDF-compatible encoding on your device before being placed on a page.
Can I change the order of the files before merging?
Yes. All PDFs and images sit in one combined list that you can rearrange freely before merging, so an image can go between two PDFs, at the start, or anywhere else.
What page size do merged images get?
You choose: fit each image onto an A4 or Letter page, or create a page sized exactly to the image so there are no margins. Existing PDF pages always keep their original size.
Are my files uploaded to a server when I merge them?
No. The merge runs in JavaScript inside your browser, so PDFs and photos never leave your device. You can even load this page, disconnect from the internet, and merge offline.