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PdfDady

Merge PDF files into one

Add your PDFs, put them in the order you want and download them as a single file. Each file's pages are copied across as they are.

1. Add PDFs

2. Merge

Files are joined in the order shown. Pages are copied as they are, so text stays selectable and quality is unchanged.

Add two or more PDFs to merge.

How to merge PDF files

  1. Add your PDFs

    Drag and drop up to 50 PDF files onto the page, or choose them. You can add more later.

  2. Check each file

    Every file is shown with a thumbnail of its first page and its page count, so you can recognise it.

  3. Put the files in order

    Use the move up and move down buttons to reorder, and remove any file you do not need.

  4. Merge and download

    Create the merged PDF and download it. The files appear in the order shown, with all their pages.

What you can do with this tool

  • Up to 50 files

    Combine as many as 50 PDFs, each up to 100 MB, with 200 MB in total.

  • Thumbnails and page counts

    See the first page and the number of pages of each file before you merge.

  • Reorder, remove, add more

    Move files up or down, remove one, or add further files at any point.

  • Pages copied as they are

    Pages are not re-rendered. Text stays selectable, and the quality is unchanged. Links inside a page are kept.

  • Stays on your device

    The merge runs in your browser and your files are not uploaded. Free, no sign-up and no watermark.

Limits and what is kept

FilesUp to 50 PDFsUp to 100 MB each, 200 MB in total
OutputOne PDF named merged.pdfFiles in the order shown, all pages of each
Page contentCopied as isNot re-rendered; text stays selectable
Links inside pagesKept
Bookmarks (outline)Not kept
Fillable form fieldsMay stop being fillable
Password-protected PDFsNot supportedRefused with a message, including encrypted PDFs that open without a password but have restrictions

Frequently asked questions

How do I merge PDF files into one?

Add your PDFs, arrange them in the order you want and create the merged file. You get one PDF with all the pages of each file, in the order shown.

Can I change the order before merging?

Yes. Use the move up and move down buttons on each file. The merged PDF follows the order on screen.

Does merging reduce the quality?

No. Pages are copied as they are rather than re-rendered, so the quality is unchanged and text stays selectable.

Are bookmarks and form fields kept?

Bookmarks (the outline) are not kept, and fillable form fields may stop being fillable. Links inside a page are kept. If you rely on bookmarks or fillable fields, check the merged file.

How many PDFs can I merge at once?

Up to 50 files, each up to 100 MB, with 200 MB in total.

Can I merge a password-protected PDF?

No. Password-protected PDFs cannot be merged in the browser, and the tool refuses them with a message. The same goes for PDFs that open without a password but have restrictions. Remove the protection with the program you used to set it, then add the file again.

Can I combine photos and PDFs?

This tool only accepts PDF files. To turn photos into a PDF first, use Image to PDF, then merge the result here.

Are my PDFs uploaded?

No. Merging runs in your browser and the files are not uploaded. There is no sign-up and no watermark. The result is saved as merged.pdf.

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