You have a few PDFs on your iPhone — a lease and its addendum, three receipts, a scanned ID and a form — and you need to send them as one file. You do not need to buy or install anything. Safari can do the whole job, the merged PDF is built on the phone itself, and the files never leave your device.
What you need
- An iPhone or iPad running a recent version of iOS (Safari with JavaScript enabled, which is the default).
- The PDFs saved somewhere the Files app can see: iCloud Drive, On My iPhone, Downloads, or a connected service like Google Drive or Dropbox.
- Nothing else. There is no account, no email address, and no App Store download.
Merge PDFs in Safari, step by step
- Open the tool. In Safari, go to onlinecombinepdf.com. Merge PDF is already selected.
- Add your files. Tap Upload files. iOS opens the Files picker; browse to the folder that holds your PDFs and choose them. You can add up to 20 files per merge, each up to 200 MB. If you need to add more later, tap Upload files again.
- Put them in order. The merged document follows the list from top to bottom. Tap Reorder and drag any file up or down.
- Optional: pick page ranges. If you only want, say, pages 2–4 of one document, turn off All pages for that file and type the start and end page.
- Tap Merge. Safari builds the combined PDF on your phone. A large batch of scans may take a few seconds.
- Save it. Tap Download. Safari asks you to confirm and then stores the file in the Downloads folder inside the Files app; a small download arrow appears in Safari's toolbar. Prefer to look at it first? Tap View, and the PDF opens in a new tab where the Share button lets you Save to Files, AirDrop it, or attach it to a message.
Where did it go? Open the Files app and look in Browse → On My iPhone → Downloads (or iCloud Drive → Downloads, depending on your Safari settings). The file is named merged_pdf_ followed by a timestamp.
The built-in alternative: Create PDF in the Files app
On iOS 16 and later, the Files app can combine PDFs without any website: open the folder, tap Select, choose the PDFs, tap the More (…) button at the bottom, and choose Create PDF. It is quick, and for two or three files it may be all you need.
Its limits are what send people to a browser tool. The pages go in the order you tapped the files, with no way to rearrange afterwards; you cannot take a page range from a document; and the option does not exist on older iOS versions. A browser-based merger also behaves identically on a friend's Android phone or a work laptop, so the steps you learn once carry over.
Why a browser tool instead of a PDF app?
Most "PDF merger" apps in the App Store are free to install and then charge a weekly subscription to remove a watermark or lift a page limit. Merging in Safari costs nothing and adds nothing to the output. It also avoids the privacy question entirely: many apps and most online mergers upload your documents to a server to process them. This tool does the merge inside Safari using JavaScript, so the lease, the ID scan, or the medical form never leaves the phone. If you want to check that yourself, load the page, switch on Airplane Mode, and run the merge — it still works, because there is no server involved. Our guide to no-signup PDF tools explains what to look for in any tool you use.
Tips for a clean result
- Scans as photos? If some of your pages are photos rather than PDFs, convert them first with the JPG to PDF tool (it accepts photos straight from the Photo Library), then add the resulting PDF to the merge. See how to combine scanned documents into one PDF.
- Check the order before merging. The list order is the page order. It is faster to drag files now than to re-merge later.
- Large files. The 200 MB per-file limit is far above any phone scan, but merging many high-resolution scans takes memory. If Safari struggles on an older device, merge in two smaller batches and then merge the two results.
- Nothing is changed inside your pages. Text, images, and vector graphics are copied as they are; nothing is recompressed, and no watermark is added.