How to Combine JPGs into a Single PDF (Free, No Signup)

You have a stack of JPG photos, or a bunch of scanned pages sitting as PNGs, and you need to send them as a single PDF. Maybe it’s a receipt, a signed contract, or a batch of product photos for a supplier. Here’s the fastest way to combine them — with zero signups and no uploads to a stranger’s server.

When you actually need a PDF

Most people default to PDF for three good reasons:

One file. Recipients don’t have to open ten attachments in the right order.
Consistent layout. A PDF looks the same on every device, unlike a folder of JPGs that email clients might reflow.
Easy to print. Multi-page PDFs are ready for staple-and-file scenarios like invoices and forms.

For anything you’d also want people to print or store as one document, PDF is the right answer.

The one-step method (browser only)

Open Zevqi’s JPG to PDF tool.
Drop in each image — JPG, JPEG or PNG. Add as many as you need.
Use the up and down arrows to reorder pages. Page one goes first.
Pick A4 or Letter, portrait or landscape.
Click Create PDF. Download.

The whole thing runs on your device using the pdf-lib library — no upload, no signup, no watermark. If your device can handle the images, it can handle the PDF.

Choosing the page size

Two options cover almost every real use case:

A4 (595 × 842 pt): the international standard. Use for anything going to a printer outside North America, or anything that’ll be viewed on a European or Asian PDF reader.
Letter (612 × 792 pt): the US and Canadian default. Use if the recipient is in North America and might print.

When in doubt: A4. It fits inside a Letter tray, whereas Letter is slightly wider than A4.

Portrait or landscape?

Match the orientation to the images. Photos taken vertically go on portrait pages, and landscape shots go on landscape pages. If you mix both, pick portrait — landscape images will scale down but still fit; portrait images shrink awkwardly on landscape pages.

Order matters — set it before you export

Once you’ve created the PDF, reordering pages is annoying. Do it in the tool: click the up and down arrows next to each thumbnail until the sequence is right. Common orders:

Scanned document: title page → body → signature page.
Receipts: newest first so the recipient sees the current one immediately.
Product photos: hero shot first, then details.

The file is too big — what now?

High-resolution photos can make PDFs surprisingly heavy. A 12 MP phone shot embedded at full resolution is ~3 MB per page. Ten of those is a 30 MB PDF that email won’t accept.

Two ways to fix it:

Compress the images first. Run each JPG through the Image Compressor at 70–80% quality before you combine them. Photos will drop to a few hundred KB each with no visible loss.
Compress the finished PDF. Run the output through the PDF Compressor, which re-saves the file with an optimized structure and strips metadata.

Compressing the source images is more effective — the image data is where the size lives, so shrinking that shrinks the PDF proportionally.

What about scanned documents?

If your scanner outputs a PNG or JPG per page, the workflow above works directly. If your phone’s scanner app produces separate images, forward them all to one place and drop them in.

For text-heavy scans, keep the scanner at 300 DPI. Higher is overkill for print, lower will blur small letters. If the scan already has an OCR text layer, this tool preserves the image as-is; if you need text-searchable output, use a dedicated OCR tool first.

Combining PDFs, not images

If you already have several PDFs and want to merge them into one document, use the PDF Merger instead. The workflow is the same: drop in each file, reorder, download.

Splitting a PDF into individual pages? Try the PDF Splitter.

Common mistakes to avoid

Uploading images to a random online tool. Free PDF services often store copies of your files — a real problem for anything with private information. Browser-only tools never see your file.
Skipping compression. Every image tool defaults to full quality. If you don’t compress first, your PDF will be twice as large as it needs to be.
Forgetting to check page order. Reordering pages inside a PDF viewer is fiddly. Fix it before export.

The bottom line

Combining JPGs into a PDF should take under a minute: drop images, set order, pick page size, download. Do it in your browser and nothing leaves your device.