You’ve got a stack of JPG images that need to become a single PDF. Maybe it’s scanned receipts for an expense report, or photos of a signed contract, or just pages from a textbook you snapped with your phone. Whatever the reason, you want it done fast, free, and without installing sketchy software.
I spent two weeks testing every JPG-to-PDF converter I could find – online tools, desktop apps, built-in OS features, even command-line options. Some were genuinely good. Others slapped watermarks on everything or tried to upsell me before I could click “Download.” Here’s what actually works in 2026.
Looking for a full-featured PDF editor that also handles conversions? Check out our guide to the best free PDF editors for more options beyond simple conversion.
Quick Comparison Table
| Tool | Type | Batch Convert | File Size Limit | Watermark | Best For |
|---|---|---|---|---|---|
| ILovePDF | Online | Yes (up to 20) | 40 MB/file | No | Quick batch jobs |
| PDF24 | Online + Desktop | Yes (unlimited) | None | No | Large batches, no limits |
| Sejda | Online + Desktop | Yes (up to 20) | 50 MB total | No (free tier) | Page size customization |
| SmallPDF | Online | Yes | 5 GB | No | Clean interface, drag-and-drop |
| JPG2PDF.com | Online | Yes (up to 20) | 20 MB/file | No | Zero-signup simplicity |
| Adobe Acrobat Online | Online | No | 100 MB | No | Brand trust, single files |
| Windows Print to PDF | Built-in | Yes | None | No | Offline, no install needed |
| macOS Preview | Built-in | Yes | None | No | Mac users, zero setup |
What I Looked For
Before diving into each tool, here’s what I evaluated during testing:
- Image quality after conversion – does the JPG look the same in the PDF, or does the tool re-compress it?
- Batch support – can you combine multiple JPGs into one PDF?
- Page layout options – margin control, orientation, page size (A4, Letter, fit-to-image)
- Speed – how long does a 15-image batch take?
- Privacy – what happens to uploaded files?
- Actually free – no hidden watermarks, no “sign up to download” traps
1. ILovePDF
ILovePDF has been my go-to for quick JPG-to-PDF jobs for about two years now. The interface is dead simple: drag your images in, arrange the order, pick your page size, hit convert. Done.
What works well
Upload up to 20 JPG files at once on the free plan. You can set orientation (portrait or landscape), choose page size (A4, Letter, or fit the image exactly), and adjust margins. The conversion itself takes about 4 seconds for a 10-image batch. Files get deleted from their servers after 2 hours.
What doesn’t
The 40 MB per-file limit is fine for photos but might be tight if you’re working with high-res scans at 600 DPI. Free users get limited daily tasks – I hit the cap after about 25 conversions in one day during testing. The premium plan ($7/month) removes those limits, but honestly, most people won’t need it.
Verdict: Best all-around option for most people. Fast, reliable, no surprises.
2. PDF24
PDF24 is the tool nobody talks about, and I genuinely don’t understand why. It’s completely free – no premium tier, no task limits, no file size restrictions. The German company behind it makes money from business solutions, so the consumer tools stay free.
What works well
No limits on anything. I tested it with 50 high-res JPGs (each around 8 MB) and it converted them into a single 280 MB PDF without complaining. You get full control over page size, image quality, and margins. They also offer a desktop app for Windows that works offline, which is nice if you’re dealing with sensitive documents.
What doesn’t
The interface looks like it was designed in 2018 and hasn’t been updated since. Functional, sure, but it won’t win any design awards. The website can feel a bit cluttered with all the different tools they offer – there’s like 40+ PDF tools on there, and finding the specific one you want takes a moment.
Verdict: Best option if you have large batches or big files. Zero restrictions is rare and genuinely useful.
3. Sejda
Sejda sits in an interesting middle ground. The free tier gives you 3 tasks per hour with a 50 MB total upload limit and up to 20 pages. That sounds restrictive, but for typical JPG-to-PDF conversion, it’s plenty.
What works well
The page size controls are the best I found in any online tool. You can set exact dimensions in millimeters, choose from presets (A4, Letter, Legal, plus about 15 others), control margins per side, and even set image alignment within the page. If you need a specific layout for printing, Sejda handles it. Files are automatically deleted after 2 hours, and they claim not to share data with third parties.
What doesn’t
That 3-tasks-per-hour limit can be annoying if you’re doing multiple conversions. The desktop version ($63/year) removes it, but that’s steep for what you get. Also, the free online version processes noticeably slower than ILovePDF – about 8-10 seconds for 10 images compared to ILovePDF’s 4 seconds.
Verdict: Go here when you need precise layout control. Not the fastest, but the most customizable.
4. SmallPDF
SmallPDF used to be fully free, then moved to a freemium model a few years back. The free tier now gives you 2 tasks per day. That’s it. Two.
What works well
The interface is probably the cleanest of any tool on this list. Drag and drop works flawlessly, the preview is instant, and you can reorder images before converting. The actual conversion quality is excellent – no re-compression artifacts, colors stay accurate. They also have a Chrome extension if you want quick access.
What doesn’t
Two free tasks per day is harsh. If you convert one JPG to PDF in the morning and need to do it again in the afternoon, you’re done for the day. The Pro plan costs $12/month, which puts it on the expensive side. Look, SmallPDF is a great tool, but ILovePDF and PDF24 give you more for free.
Verdict: Beautiful interface, stingy free tier. Fine for occasional use, frustrating for anything regular.
5. JPG2PDF.com
Sometimes you just want a tool that does exactly one thing. JPG2PDF.com converts JPG files to PDF. That’s all it does. No account, no signup, no email required.
What works well
The simplicity is honestly refreshing. Open the page, click “Upload Files” or drag images in, click “Combined” to merge them into one PDF or download individual PDFs. The whole process takes under 10 seconds. No ads on the conversion page itself (there are some on the sidebar, but they’re not intrusive). Supports up to 20 images per batch.
What doesn’t
Almost zero customization. You can’t set page size, margins, or orientation – it just fits the image to the page. For most casual use that’s fine, but if you need A4 with specific margins for printing, look elsewhere. The 20 MB per-file limit is the tightest on this list. And there’s no way to reorder images before combining – they go in the order you uploaded them, so name your files wisely.
Verdict: The fastest path from JPG to PDF. Perfect for “I need this done in 30 seconds” situations.
6. Adobe Acrobat Online
Adobe invented the PDF format, so you’d expect their converter to be solid. It is – with some caveats.
What works well
Conversion quality is flawless, as you’d expect. The output PDF uses proper compression that keeps file sizes reasonable without visible quality loss. You get a free Adobe account that lets you do a limited number of conversions per month. The 100 MB file size limit is generous for single files.
What doesn’t
You can only convert one file at a time on the free plan. Want to combine 5 JPGs into one PDF? That requires Acrobat Pro ($19.99/month). The free plan also requires signing in with an Adobe ID – no anonymous conversions. And Adobe’s interface, while polished, loads slower than lighter tools like ILovePDF because it pulls in the full Acrobat web app framework.
Verdict: Great for single-file conversions when quality matters. The lack of free batch support is a dealbreaker for most workflows.
7. Windows “Print to PDF” (Built-in)
Here’s the thing most people don’t realize: if you’re on Windows 10 or 11, you already have a JPG-to-PDF converter installed. No download, no website, no upload.
How to do it
Select your JPG files in File Explorer. Right-click and choose “Print.” In the printer dropdown, select “Microsoft Print to PDF.” Choose your paper size, quality, and whether to fit the image to the frame. Click Print. Pick where to save the PDF. Done.
For multiple images: select all the JPGs you want (Ctrl+click), right-click, choose Print. Windows will combine them into a single PDF. You can even rearrange the order in the print preview.
What works well
Completely offline. Your images never leave your computer. No file size limits, no daily task caps, no signup. Works with any image format Windows can open (JPG, PNG, BMP, TIFF, GIF). The output quality matches your printer settings, which default to high quality.
What doesn’t
The print dialog is designed for printing, not PDF creation, so the controls feel clunky. Margin control is limited to whatever your “printer” profile allows. And if you have more than about 30 images, the print preview can get sluggish. Not ideal for bulk operations, but solid for everyday use.
Verdict: Already on your PC. No reason not to try it first if you’re on Windows and want to stay offline.
8. macOS Preview (Built-in)
Mac users have it even easier. Preview, the default image viewer on macOS, handles JPG-to-PDF conversion natively.
How to do it
Open your JPG in Preview. Go to File > Export as PDF. Save. That’s a single image.
For multiple images: select all your JPGs in Finder, right-click, Open With > Preview. All images open in Preview’s sidebar. Select all thumbnails (Cmd+A), then File > Print > PDF dropdown > “Save as PDF.” Every selected image becomes a page in one PDF.
What works well
Same benefits as the Windows method – completely offline, no limits, no signup. Preview also lets you annotate the PDF after creation (add text, signatures, shapes) which is handy. The Automator app on macOS can even create a quick action for batch converting JPGs to PDF if you do this frequently.
What doesn’t
Page size defaults to the image dimensions, which can create PDFs with inconsistent page sizes if your JPGs aren’t uniform. You can work around this in the Print dialog by setting a fixed paper size, but it adds a step. Also, reordering pages in Preview’s sidebar can be finicky with large batches – thumbnails sometimes don’t drag smoothly.
Verdict: If you’re on a Mac, this should be your first stop. Fast, private, and surprisingly capable.
Which Method Should You Use?
After testing all of these extensively, here’s my honest recommendation based on what you’re actually trying to do:
- Quick one-off conversion – use your OS built-in tool (Windows Print to PDF or macOS Preview). No upload, no wait, no privacy concern.
- Batch of 5-20 images into one PDF – ILovePDF. Best balance of speed, features, and free tier generosity.
- Huge batch (50+ images) or large files – PDF24. Literally no limits.
- Need exact page dimensions for printing – Sejda. Most granular layout controls.
- Just want it done in 10 seconds, no questions – JPG2PDF.com. Zero friction.
One thing worth mentioning: if you regularly work with PDFs beyond just converting images, a dedicated free PDF editor might save you time in the long run. Most of them include JPG-to-PDF conversion plus editing, merging, splitting, and annotation.
Tips for Better JPG-to-PDF Conversions
Image quality matters before conversion
A JPG-to-PDF converter can’t improve your source image. If your scan is blurry at 72 DPI, the PDF will be blurry too. For document scans, shoot for 300 DPI minimum. Phone cameras work fine for most documents, but use good lighting and hold the camera straight above the page.
File naming = page order
Most batch converters sort files alphabetically or by upload order. If your pages need to be in a specific sequence, name them with leading numbers: 01_cover.jpg, 02_intro.jpg, 03_chapter1.jpg. This saves you from manually reordering in every tool.
Compression tradeoffs
Some tools let you choose output quality. “High quality” keeps the original JPG data mostly intact but creates larger PDFs. “Compressed” reduces file size but may introduce additional JPEG artifacts on top of what’s already there. For text documents, compression is usually fine. For photos you plan to print, keep quality high.
Privacy considerations
Online converters upload your images to a server for processing. Most claim to delete files within 1-2 hours, but you’re trusting their word. For sensitive documents like IDs, contracts, or medical records, use an offline method: Windows Print to PDF, macOS Preview, or PDF24’s desktop app. Your files never leave your machine.
Need to do the reverse and convert PDF back to JPG? We’ve tested the best tools for that too.
Frequently Asked Questions
Is it free to convert JPG to PDF?
Yes. Every tool in this guide offers free JPG-to-PDF conversion. ILovePDF, PDF24, and JPG2PDF.com are the most generous with their free tiers. Windows and macOS both have built-in converters that cost nothing and work offline. Premium plans exist on some tools but are only needed for heavy commercial use.
Can I combine multiple JPG images into one PDF?
All the tools listed here support combining multiple JPGs into a single PDF. ILovePDF handles up to 20 images per batch on the free plan. PDF24 has no limit at all. Even the built-in Windows and macOS methods support multi-image PDF creation through their print dialogs.
Does converting JPG to PDF reduce image quality?
It depends on the tool and settings. Most converters embed the original JPG data directly into the PDF without re-compressing it, so quality stays identical. Some tools apply additional compression to reduce file size, which can introduce minor artifacts. If quality preservation is a priority, check for a “high quality” or “original quality” setting before converting.
What’s the maximum file size for free JPG-to-PDF conversion?
It varies by tool. JPG2PDF.com allows 20 MB per file. ILovePDF caps at 40 MB per file. Adobe Acrobat Online goes up to 100 MB. PDF24 and the built-in OS methods have no file size limits at all. For most phone photos (typically 3-8 MB each), any tool on this list works fine.
Is it safe to upload JPG files to online converters?
Reputable tools like ILovePDF, PDF24, and Sejda delete uploaded files within 1-2 hours and use encrypted connections for transfer. That said, if you’re converting sensitive documents like personal IDs, financial records, or legal contracts, use an offline method instead. Windows Print to PDF and macOS Preview process everything locally on your device.