Drop files here, or click to browse
PDF, JPG or PNG · add as many as you need · up to 100 MB each
How to use
Add your files
Drop PDFs, JPGs or PNGs on the upload area, or click it to browse. Each file can be up to 100 MB, and you can keep adding files until you click Merge.
Set the order and the pages
Drag rows by the grip handle, use the up and down arrows, or pick a sort such as Name A to Z. Leave a file's Pages box blank to include all of it, or type ranges like 2-5, 8.
Merge and download
Open Merge options if you want bookmarks, a contents page, blank pages or one page size, and set the file name. Click Merge and the combined PDF downloads, while your originals stay unchanged.
Why Merge PDF
- Drag rows into order or sort them by name or date.
- Take only some pages from a file, and rotate a file before merging.
- Add bookmarks, a contents page, blank pages for duplex printing or one page size.
- Runs in your browser, so your files are never uploaded.
How to merge PDF files on Android or iPhone
The tool runs in the browser, so there is no app to install on a phone. The steps are the same on Android and iPhone, with a few differences in where your files live.
Phones have less memory than laptops, so very large sets of scanned PDFs can take longer or fail on older devices. If that happens, merge in two batches and then merge the two results.
- Open the Merge PDF page in Chrome, Safari or any current mobile browser.
- Tap the upload area. On Android pick files from Downloads or Drive. On iPhone tap Choose File, which opens the Files app.
- Tap again to add more files. Each new file is added to the bottom of the list.
- Use the up and down arrows on each row to set the order, and type page ranges in the Pages boxes if you need only part of a file.
- Tap Merge. The file saves as merged.pdf in your Downloads folder on Android, or in Files under Downloads on iPhone.
Merging in the browser compared with upload-based tools
Many online PDF tools send your files to their own servers, merge them there and send the result back. This tool does the whole job inside your browser tab. The table sums up what that means in practice.
Upload-based services can do things a browser cannot easily do, such as converting Word files or running OCR on scans. For plain merging of PDFs and images, local processing is enough and keeps the files with you.
| Question | This tool (in your browser) | Upload-based tool |
|---|---|---|
| Where are the files processed? | On your own device | On the provider's server |
| Do the files travel over the internet? | No | Yes, both ways |
| Who could keep a copy? | No one else receives the files | Depends on the provider's retention policy |
| What limits speed? | Your device's processor and memory | Your upload and download speed |
| Size limit | 100 MB per file here | Set by the provider, often lower on free plans |
Merge options explained
The options panel under the file list changes how the merged file is put together. Everything is off by default, so a plain merge copies your pages as they are.
| Option | What it does | When to use it |
|---|---|---|
| File name | Sets the name of the download, .pdf is added | Packets you send to others |
| Page size | Keep original sizes, match the first page, or make every page A4 or US Letter | Mixed scans and exports that should print evenly |
| Blank pages between files | Adds a blank page after files with an odd page count, or after every file | Double-sided printing, so each file starts on a front side |
| Bookmark for each file | One bookmark per file in the viewer's side panel | Long packets people will navigate on screen |
| Contents page | A first page listing each file with its page number, each line a link | Printed or shared bundles |
| File name in the footer | Small grey text at the bottom of every page | Checking which file each page came from |