Combine scanned pages
Bundle separately scanned pages of an ID, contract, or receipt into one clean PDF.
Merge PDF
Combine up to 20 PDF files into a single document, in the order you choose, in just a few seconds. Useful for assembling reports, bundling chapters, or merging scans of a multi-page document.
How to use Merge PDF
- Upload your file using the secure uploader.
- Choose any available conversion options, such as page size, margins, quality or language.
- Start the conversion and download the finished file when it is ready.
Common use cases
Assemble a report
Merge cover page + body + appendix PDFs from different sources into one deliverable.
Group invoices for accounting
Combine a month of invoices into a single PDF for your records or accountant.
Submit a single application
Many forms require all attachments in one PDF — merge them in the right order.
Limitations
Conversion results can vary depending on the structure, quality and complexity of the source file.
Privacy and security
Files are transferred over HTTPS, processed only for the requested conversion and automatically deleted within 30 minutes. FlowToPDF does not require an account and does not use uploaded files for training or manual review.
Frequently asked questions
How many PDFs can I merge at once?
Up to 20 PDF files in a single merge, with a combined limit of 50 MB.
Can I choose the order of pages?
Yes — files are merged in the order you upload them. You can drag to rearrange before merging.
Does merging change page quality?
No. Pages are copied byte-for-byte from the source PDFs, so quality and file size are preserved.
Are bookmarks or links preserved?
Page-level content (text, images, links inside pages) is preserved. Document-level bookmarks are reset since pages are renumbered.
Is there a limit on how many times I can use this?
No daily limit. Merge as many times as you need.
Related PDF tools
Convert your file
The interactive uploader loads here in the browser after the SEO content.