Merge PDF

Combine two or more PDF files into one document. Docsy keeps every page and merges the files in the order shown in the picker.

How to use Merge PDF

Choose at least two PDF files.
Confirm that the files appear in the order you want them combined.
Select Merge and download PDF, then open merged.pdf and check the page order.

Related PDF tools

Helpful guides

What this tool is best for

Combining invoices, statements, reports, or application documents.
Keeping the original PDF pages without retyping or rebuilding them.
Merging confidential files locally in the browser.

Tips for a better result

Name or select the files in the desired order before merging.
Open the finished PDF and check the first and last page of each source document.
Use Rearrange PDF afterward if individual pages need a different order.

Know before you start

Password-protected or damaged PDFs may not open until they are unlocked or repaired.
The current tool merges whole files; use Extract PDF Pages first when you only need selected pages.
Large groups of PDFs can use considerable memory on mobile devices.

Common problems and fixes

If a protected file fails, unlock it with the authorized password before merging.
If the sequence is wrong, choose the files again in the required order or use Rearrange PDF after merging.
For many large files, merge them in smaller groups on a desktop browser.

Frequently asked questions

How many PDFs do I need?

At least two. The result contains all pages from each selected file.

Does merging reduce quality?

No. Docsy copies the original PDF pages into a new document rather than rendering them as images.

Are the PDFs uploaded?

No. Merging runs locally in your browser.

Privacy note: Docsy labels tools that process locally. File contents are never included in Google Analytics.

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Step-by-step help

PDF too large for email Reduce it carefully →PDF must be under 10 MB Try the strongest local settings →Image must be under 1 MB Target a specific size →Image must be under 2 MB Keep the best possible quality →iPhone photo will not open Convert HEIC to JPG →Photo rejected by an online form Set the required dimensions →Several photos need one PDF Combine them in order →PDF must be under 25 MB Balance quality and size →

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PRACTICAL GUIDES

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PDF to Word without losing formattingKnow when to preserve appearance and when to choose editable text.Merge PDFs in the right orderPrepare, combine and verify a clean final document.Reduce an image without ruining itUse dimensions and quality in the right sequence.HEIC or JPG?Choose the right format for sharing, forms and storage.Verify Release values against SQLConfirm every expected value is present and identify extras.

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