Merge PDF Files Online – Combine Multiple PDFs into One File

The merge tool does not edit or compress your PDFs. It takes the first file in your list and appends the pages of the second file after it, then the third, and so on. The output is a single PDF whose page sequence matches the order of the file list you set. You control that order before running the merge—by dragging and dropping or using up/down controls—so the final document reads correctly.

Upload one or more PDFs, then review the list. If the order is wrong, reorder the files. When the sequence is correct, start the merge. Processing runs in the browser or on our servers; when it finishes, you download the merged PDF. The original files are not modified. If you need to change the order after the fact, you must re-upload and merge again with the correct order; there is no in-document reorder step.

Scanned PDFs and digital PDFs can be mixed in one merge. If you want the merged result to be searchable, run an OCR PDF pass on the output, or OCR each source file before merging. For more on combining scanned documents, read how to combine scanned PDFs into one document.

Use merge PDF when you have multiple PDF files that should be one document and you do not need to change the content inside the pages—only the order and grouping. Typical situations: assembling a contract with schedules and exhibits, building one report from a cover and several sections, turning many single-page scans into one multi-page PDF, or collecting invoices or receipts for a period into a single file for accounting or audit.

Do not use merge when you need to edit text or images (use an editor or PDF to Word and then export to PDF), reduce file size (use compress PDF instead), or pull out only some pages from a file (use split PDF to extract pages, then merge the results if needed).

Contracts and legal documents. Combine a main agreement with schedules, amendments, or exhibits into one PDF for sharing, signing, or archiving. Page order matters: put the main contract first, then appendices in a logical sequence. Use the tool's reorder step before merging so the final order is correct.

Reports and appendices. Merge a cover, executive summary, and body sections or appendices into a single file for submission or email. Helpful when different sections were created in separate tools or by different people. The merged PDF preserves each section's formatting.

Scanned documents. Join scanned pages from different sessions or devices into one chronological or thematic document. If the scans are image-only, the merged file will be too; run OCR on the result if you need searchable text. Our guide on combining scanned PDFs into one document covers when to use OCR and how order affects the result.

Invoices and receipts. Combine invoices, receipts, or bank statements for a given period into one PDF for accounting, expense reports, or records. Merge keeps each page as-is, so numbers and layout stay intact.

Preparing a single file for translation or conversion. If you need to translate or convert several PDFs as one unit, merge them first, then use Translate PDF or PDF to Word on the merged file. For scanned sources, run OCR before or after merging as needed.