Merge PDF Online – Combine PDF Files
Combine separate reports, invoices or study notes into a single PDF. HappyPDF joins files in the order shown in the file list, so you can prepare one document for sharing or printing.
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How to merge pdf
- Choose two or more PDF files.
- Use the up and down arrows to arrange the files in the order you want.
- Select Merge PDF, then download and check the combined document.
What to know before you start
You can select up to 30 files, with a combined limit of 300 MB and 500 pages. The arrows move whole files; use Rearrange PDF Pages afterward to change individual page positions. Keep your source files, especially when they contain forms, bookmarks or signatures.
Frequently asked questions
Can I merge password-protected files?
Use Unlock PDF with the appropriate password first, then merge the unlocked copies.
Will merging make my PDF smaller?
Merging joins the documents; it is not a compression step. If the result is too large, try Compress PDF afterward.
Local processing, no sign-up
HappyPDF processes your selected files in this browser. An internet connection is needed to load processing software. Keep your original document and review the downloaded result; editing can affect forms, annotations and digital signatures.