All Converter Pro
Merge PDF Files
Merge PDF files online for free into a single document. Upload two or more files, they combine in your selected order, and the final page count is shown when the merge is complete.
About this Merge PDF tool
Merge PDF is built for combining invoices, scanned documents, receipts, contracts and reports into one organized PDF. Select files in the order you want them to appear, then download the merged file. The tool preserves each page exactly as it was in the original files, so no content is recompressed or altered during merging.
How to use Merge PDF
- Open the tool and add your file, text or values.
- Review the available options such as page range, output format, quality, password or language.
- Start the process and keep the browser window open until it finishes.
- Download the result and continue with a related tool if needed.
Useful tips
- For scanned PDFs, tools with OCR support run text recognition automatically where possible.
- For large files, use compression tools before sharing by email or uploading to portals.
- For best results, upload clean files with the correct extension and avoid corrupted documents.
Tips for a clean merge
File order in the merged PDF matches the order the files were added in the upload dialog, so double-check the order before starting if sequence matters, such as for a multi-part contract.
If you only need certain pages from one of the source files, run it through Split PDF first to extract those pages, then merge the extracted file with the rest.
Frequently asked questions
How do I control the PDF order?
The files are merged in the selected upload order. Select files in the sequence you want, or rename them with a numeric prefix (01-, 02-, and so on) before uploading so your file browser sorts them correctly.
Can I merge scanned PDFs?
Yes. Scanned and normal PDFs can be merged together in any combination.
Does merging reduce quality?
No. Merge PDF combines pages without recompressing the original PDF content, so image and text quality stay exactly the same.
How many PDF files can I merge at once?
You can merge up to 30 PDF files in a single job.
Is this PDF merger free?
Yes, merging PDF files with this tool is free, with no account required.
Are my uploaded files private?
Files are stored with unique temporary names during processing and old temporary files are cleaned automatically.
Can I use this on mobile?
Yes. The upload and conversion workflow works on desktop, tablet and mobile browsers.