Merge PDFs on iPhone
You do not need an app to merge PDFs on an iPhone. Safari can do it, and so can any other browser, as long as the tool runs on your device rather than on someone else’s server.
It matters little for a shopping list and a lot for a signed contract or a medical record. Most PDF sites upload your file to be processed; LocalPDF does not. Everything happens inside the browser tab, so the file never leaves your phone.
These steps use Safari, but they work the same in Chrome, Firefox or Edge on iOS.
How to Merge PDFs on iPhone (and iPad): Free | LocalPDF
- 01
Open the merge tool in Safari
Go to the Merge PDF page. Nothing to install and no account to create; the tool loads and is ready to use.
- 02
Add your PDFs from Files or iCloud
Tap the drop area and pick the files you want to combine. You can choose several at once, and they can come from On My iPhone, iCloud Drive or another provider.
- 03
Put them in order
Drag a file into place, tap the arrows, or sort by name. Merging happens in the order shown, top to bottom.
- 04
Merge and save to Files
Tap Merge, then Download. Safari offers Save to Files, so you can drop the combined PDF straight into iCloud or On My iPhone.
Questions
Can I merge PDFs on iPhone without installing anything?
Yes. Open the merge tool in Safari, add your files and download the result. No app, no account and no upload. When you tap Download, iOS lets you save the merged PDF to Files or iCloud Drive.
Where do I find PDFs on my iPhone to merge them?
Your PDFs are usually in the Files app, either under On My iPhone or iCloud Drive, or in another provider you have added. When the merge tool opens the file picker, tap Browse to move between those locations. Files attached to an email or received in a message can be saved to Files first.
Will the merged PDF keep its links and bookmarks?
Yes. Links and bookmarks are re-pointed to their pages in the combined file, and form fields keep working. If two files have a form field with the same name, the second is renamed so filling one does not fill the other.
Is it safe to merge PDFs on a phone?
It is safe with a tool that processes the file on your device, which this one does. The risk with phone PDF tools is the ones that upload your document to a server, where it may be stored or shared. Here nothing is uploaded, so there is nothing to leak.
Do I need an app?
No. The App Store is full of PDF apps, but none of them can do anything Safari cannot, and many upload your documents to their own servers. A tool that runs in the browser tab keeps the file on your phone and needs no installation, no storage and no updates.
The trade-off worth checking is size: a browser can handle a few hundred pages comfortably, while a very large file may be quicker in a native app. For everyday documents, the browser is enough.
Does it work offline?
Yes, once the page has loaded. LocalPDF stores itself on your device the first time you visit, so after that it keeps working with no connection. That is useful on a plane or in a place with poor signal.