Merge PDF Files

How to merge PDF files in 3 steps

1. Add your files. Press Select files or drag PDFs and images anywhere onto this page. You can add more at any time with Add files, and nothing is uploaded while you do.
2. Put them in order. Drag a file by its handle, or use the arrow buttons on each card. Sort files puts them in name or date order in one step, which saves time when you have a folder of scans called page1, page2, page10.
3. Merge and save. Check the file name, press Merge PDF, then Download PDF. On a phone you can also press Share to save the file to Files or send it straight to email or a chat.

The first file’s name is used for the result, for example invoice-merged.pdf. Type a new name if you like, including accents or other alphabets, and the PDF’s title is set to match the first file unless you choose another one.

Choose pages: page ranges, page view, rotate and delete

You rarely need every page of every file. Each PDF card has a Pages box. Leave it empty to keep all pages, or type the pages you want, separated by commas:

• 1-3, 5 keeps pages 1, 2, 3 and 5.
• 8- keeps page 8 to the end, and -4 keeps the first four pages.
• last means the final page, and 5-1 puts pages 5 to 1 in reverse order.

If you type a page that doesn’t exist, the box tells you straight away, for example “Page 12 doesn’t exist. This file has 10 pages”, and the merge waits until it is fixed. The rotate button on a card turns every page of that file by 90 degrees, which is handy for scans that came out sideways.

For full control, switch to Pages at the top of the tool. Every page from every file is shown as a thumbnail. Drag pages into any order, even between files, select several with Shift or Ctrl (or by tapping on a phone), and rotate, delete or insert blank pages. Every change can be undone with the Undo button or Ctrl+Z. Keyboard users can move between pages with the arrow keys, press Space to select and Alt+Arrow to move a page.

Combine PDF and JPG (or PNG) into one PDF

Photos of receipts, scanned ID cards and screenshots often need to travel with a PDF form. Add JPG, PNG or WebP images in the same way as PDFs and place them wherever they belong. Each image becomes one page. Phones often save photos sideways and record the correct direction separately; the tool reads that and puts every photo the right way up.

By default, image pages are A4 in most countries and US Letter in the United States and Canada, turned landscape for wide pictures. Under More options you can switch the size, make the page match the picture exactly, or add a small white margin. JPG and PNG images keep their full quality. Hidden details stored by cameras, such as the GPS location where a photo was taken, are not copied into the PDF.

Is it safe to merge PDFs online? Why “no upload” matters

Most online PDF tools upload your documents to their servers, merge them there, and promise to delete them after an hour or two. That means a copy of your tax return, contract or passport scan sits on a computer you know nothing about. In 2024, security researchers found that two online PDF converter services had left tens of thousands of uploaded documents, including passports and contracts, open to anyone on the internet. In 2025, the FBI warned that some free online file converters were being used to spread malware and steal personal information.

This tool works differently. When you open the page, your browser downloads the tool itself, and from then on the files you choose are read and merged on your own device. They are not uploaded, stored or seen by anyone. You don’t have to take our word for it: add your files, switch off Wi-Fi or turn on airplane mode, and press Merge PDF. The merge still finishes and you can still download the result, because nothing needs to be sent anywhere. There is no account, no email address to give, and no watermark on your document.

Password-protected, signed and fillable PDFs: what to expect

Password-protected files show a lock and a password box. Type the password to open the file; it is checked on your device and never sent anywhere. The merged PDF has no password, so keep it somewhere safe. Some PDFs open without a password but have restrictions set by their author, such as “no editing”. The tool asks you to confirm that you have the right to change those files before it merges them.

Digitally signed PDFs can be merged, but the signature won’t stay valid. A digital signature proves that a file hasn’t changed since it was signed, and merging creates a new file. The signature still appears on the page, but PDF readers will report it as invalid. The tool tells you when a file is signed, so it never happens by surprise.

Fillable forms stay fillable, including any answers already typed in. If you merge two copies of the same form, matching field names are renamed (for example “Name” and “Name_2”), so filling in one copy doesn’t change the other. If you would rather lock the answers in place, choose Flatten them under More options. Older dynamic forms (called XFA forms) are flagged, because their fields may not work after any kind of merge.

What carries over: bookmarks, links, forms and page sizes

If you rely on a screen reader’s tagged structure, keep the original files as well, because the merged copy won’t have those tags.

Merge PDFs on Mac, iPhone, Android and Windows

This page works the same way in any modern browser, so you can use it on every device. Your system may also have a built-in option:

• Mac: open the first PDF in Preview and choose View > Thumbnails. Drag the other PDFs into the sidebar, then choose File > Export as PDF. In Finder, you can also select several files, right-click and choose Quick Actions > Create PDF.
• iPhone and iPad: in the Files app, tap Select, choose your PDFs, tap the More button (three dots) and choose Create PDF. You can’t pick pages or add bookmarks there, which is where this tool helps.
• Android: most phones don’t include a way to merge PDFs. Open this page in Chrome, tap Select files, and pick documents from your phone or Google Drive.
• Windows: Windows doesn’t include a PDF merger. Use this page in Edge, Chrome or Firefox; nothing needs to be installed.

Tips for a better merged PDF

• Name files in order before you start. Scans called 01, 02, 03 sort perfectly, and the tool’s name sort also understands page2 before page10.
• Printing double-sided? Tick Add a blank page after files with an odd number of pages. Each document then starts on a fresh sheet instead of on the back of the previous one.
• Keep the bookmarks on. A bookmark per file makes a long merged PDF easy to move around, especially on a phone.
• Need a smaller file? Merging doesn’t shrink anything, so twenty scanned pages stay as large as they were. If an email service refuses the attachment, compress the PDF before you send it, or share it as a link from your cloud storage.

Last updated: 2026-11-14