Merge PDF

Merging PDFs takes the pages from two or more PDF files and places them into one document. It is useful when related material has been saved as separate files but needs to be shared, archived, printed, or reviewed as a single PDF.

The order matters. If you upload a cover sheet, a report, and an appendix in that sequence, the merged document should follow the same sequence. Check the file order before processing, especially when the documents have similar names.

A merged PDF can contain pages with different dimensions, orientations, margins, and visual styles. An A4 document can be combined with a landscape page or a scanned letter-size page without turning those pages into one common layout.

That is often desirable because merging is primarily about combining documents, not redesigning them.

If consistent page dimensions are important for printing or presentation, review the completed PDF and use an appropriate page or editing tool separately if adjustments are required.

Ordinary page content generally makes merging straightforward, but a PDF can contain more than visible text and images. Forms, bookmarks, attachments, annotations, document-level navigation, signatures, and other advanced structures may behave differently after documents are combined.

For an important business, legal, financial, or archival document, review those features in the merged result instead of assuming that everything outside the visible pages has been carried over unchanged.

Common examples include combining an invoice with supporting receipts, joining chapters of a report, packaging application documents into one file, combining scanned paperwork, or creating one handout from several PDFs.

If you only need a few pages from a large document, splitting or extracting the required pages first can produce a cleaner final file than merging the entire source document.

Open the result and check the first page, last page, page sequence, page orientation, and any forms or links that matter to you. Keep the original PDFs until you have confirmed that the combined document contains everything you expected.