Merge PDF
Combine multiple PDF files into one PDF directly in your browser.
Your PDF files are processed locally in your browser and are not uploaded by this tool.
How to Use Merge PDF
Upload multiple PDF files, arrange them in the desired sequence and merge them into one document.
Practical Example
A two-page contract and a three-page appendix can be merged into a single five-page PDF.
Factors That Affect the Result
File order, encrypted documents, page sizes, form fields and PDF compatibility can affect the merged output.
Frequently Asked Questions
Does merging change page order?
The final order follows the sequence you choose before merging.
Can password-protected PDFs be merged?
Protected files may need to be unlocked first depending on the tool.
Does merging reduce file size?
Not necessarily; use a compressor if size reduction is also required.
Preparing Files Before Merging PDFs
Merging combines multiple PDF documents into one file while preserving the page sequence you choose. Before creating the output, arrange files in the intended order and check whether each source contains pages that should be removed, rotated, or reordered first.
What Can Affect the Final PDF
Source PDFs can use different page sizes, orientations, compression levels, fonts, forms, bookmarks, or security settings. A merged document may therefore contain pages with visibly different dimensions even though they are part of one file. Large image-heavy PDFs can also produce a large final download.
After merging, open the result and verify page order, readability, and completeness before deleting the originals. Password-protected or restricted documents may need to be unlocked with appropriate authorization before they can be processed. Merging changes document packaging; it does not automatically edit, OCR, compress, or standardize the content of individual pages.