MarukitMerge PDF Files
Marukit's Merge PDF is a free web tool that combines up to 20 PDF files into a single PDF. Put them in the order you want, press Merge PDF and download one file.
Your PDFs are processed inside your browser and are never uploaded to our servers.
About this tool
Pages are copied exactly as they are, so text stays sharp and selectable. The pages of each file keep their own order.
How to use the Merge PDF tool
- Choose two or more PDF files.
- Drag the files, or use the arrow buttons, to put them in order.
- Press Merge PDF and download the combined file.
Merge PDF files on iPhone and Android
- On iPhone, tap the box above and choose Browse to pick the PDFs from the Files app. The merged PDF saves to Files › Downloads.
- On Android, tap the box and pick the PDFs from Files or Downloads. The merged PDF saves to your Downloads folder.
Not working? Quick fixes
- 'This PDF is password-protected': if you're allowed to, save a copy without a password in your PDF app, then choose that copy.
- 'This PDF couldn't be read': the file may be damaged or only partly downloaded. Download it again and retry.
- The page stops responding on a phone: use a smaller PDF, or try on a computer.
Supported formats
- Input
- PDF files
- Output
- PDF (one file)
- Processing
- In your browser
Limitations
- Up to 100 MB per PDF. Big files need a lot of memory, so on a phone use smaller files.
- Password-protected (encrypted) PDFs can't be opened. This tool doesn't remove passwords.
- Up to 20 files at a time.
- Bookmarks, fillable form fields and document properties (title, author) are not kept in the merged file.
Frequently asked questions
Can I change the order of the files?
Yes. Drag the files in the list, or use the up and down arrows, before you press Merge PDF. The pages inside each file stay in their original order.
Does merging reduce quality?
No. Pages are copied as they are, without turning them into images or re-compressing them.
Can I merge a PDF with JPG images?
Not directly: this tool takes PDF files only. Turn the images into a PDF with JPG to PDF first, then merge that PDF with the others here.
Can I merge only some pages?
Merging always adds whole files. Remove the pages you don't want first with Delete PDF Pages, or pull out the ones you need with Split PDF, then merge the results.
Is a watermark added?
No. The merged PDF has only your pages, with no watermark or extra page.
Why can't I merge a password-protected PDF?
An encrypted PDF can't be read without its password, and this tool doesn't remove passwords. If you're allowed to, save a copy without a password in your PDF app and add that copy.
Are my files uploaded?
No. The PDF is processed by your browser on your device, and nothing is sent to our servers.
Is it free?
Yes, free with no sign-up and no watermark.