About Merge PDF
Merge PDF online to turn separate reports, invoices, or application documents into one file. You can combine PDF files without uploading their contents to a processing server. Pages follow the order of the selected files; the originals are not overwritten.
How to merge PDF files
- Select the PDF documents you want to combine.
- Arrange the files in the required order and select Process.
- Preview the combined document, check its page order, and download the result.
A practical example
- Input
A 2-page cover.pdf followed by a 3-page report.pdf.
- Result
merged.pdf containing 5 pages: the cover first, then the report.
Merging copies pages rather than converting them into images. Review forms, annotations, and document-specific features before sharing.
Supported input and limitations
- Select up to 100 files with a combined size of 100 MB. Available browser memory can impose a lower practical limit.
- Password-protected or damaged PDFs cannot be opened. This is a page merger, not a PDF signature or interactive-form preservation service.
Processing happens on your device. Read about local processing and optional workspace recovery.
Frequently asked questions
Does merging PDF files reduce image quality?
The merger copies PDF pages without intentionally recompressing their images. It does not rasterize every page, but document-level features can behave differently in the new file.
Can I merge password-protected PDFs?
Not directly. Create an unprotected copy using software you are authorized to use, then select that copy. The tool does not remove passwords.