This free PDF merger joins two or more PDF files into a single document. Add your files, arrange them by dragging or with the arrow buttons, and download one tidy PDF that contains every page in the order you set. There is no watermark and no page limit.
Merging happens entirely in your web browser using JavaScript, so contracts, invoices and school papers stay on your own computer or phone. Nothing is sent to a server, which also means there is no waiting for uploads – even large files are combined almost instantly.
How to use the Merge PDF tool
- Click Choose PDF files or drop your PDFs onto the box. You can add more files at any time.
- Put the files in the right order: drag the ⠿ handle, use the ↑ ↓ arrows, or click Sort A–Z.
- Remove any file you added by mistake with the ✕ button.
- Click Merge PDF and then Download merged PDF.
Why use ToolOrca Merge PDF
- Merge unlimited PDF files
- Drag-and-drop reordering, also on touch screens
- Keeps original page quality and text
- Shows page count for every file
- No watermark, no account
- Runs locally – files never leave your device
Tips for a clean merged PDF
Name your files with numbers first (for example “01-cover.pdf”, “02-report.pdf”) and use Sort A–Z to put them in order in one click. Numbers are sorted naturally, so “10” comes after “9”.
If you only need some pages of a file, run it through Extract pages first, then merge the result. To change the order of individual pages after merging, use Organize PDF.
What is kept when PDFs are merged
Every page is copied exactly, including text, images, vector graphics and links within the page. Text stays selectable and searchable. Interactive form fields and the bookmarks panel of the original files may not carry over, because they belong to the source document rather than to a single page.
Password-protected PDFs cannot be merged until the password is removed, since their content is encrypted.
Frequently asked questions
How do I merge PDF files on iPhone or Android?
Open this page in Safari or Chrome, tap Choose PDF files and pick the PDFs from Files, iCloud Drive or Google Drive. Use the arrows to order them, tap Merge PDF and save the download. No app is needed.
Is it safe to merge confidential PDFs here?
Yes. The files are read and combined by your own browser. They are not uploaded, stored or seen by anyone, and closing the tab clears them from memory.
Is there a limit on the number or size of files?
There is no fixed limit. The practical limit is your device’s memory: hundreds of pages are fine on a laptop, while very large files (several hundred MB) may be slow on older phones.
Will merging reduce the quality of my PDFs?
No. Pages are copied as they are, without re-compressing images or turning text into pictures. If the merged file is too big, run it through Compress PDF afterwards.
Can I merge a PDF that has a password?
Not directly. Open it with the password in a PDF reader, save or print it as a new PDF without protection, and then merge that copy.