How many PDF files can I merge at once?

You can merge up to 20 PDF files in a single operation. If you need to combine more, merge in batches and then merge the resulting PDFs together.

Is there a file size limit?

The combined total of all uploaded files must be under 100 MB. Individual files can be any size as long as the total stays within this limit.

Will the merged PDF preserve bookmarks and hyperlinks?

Yes. All content from each source PDF is preserved — text, images, fonts, bookmarks, hyperlinks, and annotations are all carried over to the merged document.

Are my PDF files stored on your server?

No. All files are processed in memory and discarded immediately after the merged PDF is returned. Nothing is saved to disk or logged.

Can I merge password-protected PDFs?

No. Password-protected PDFs must be unlocked before uploading. Our tool cannot process encrypted documents.

Does the merger reduce PDF quality?

No. The merge operation is lossless — it copies pages from each source document into the combined file without re-encoding or altering any content.

Can I choose the order of pages in the merged PDF?

Yes. Use the up and down buttons next to each file to reorder them before merging. The merged PDF will follow the file order exactly.

What should I do if the merge fails?

Check that all files are valid PDFs and not password-protected. If one file is corrupt, try removing it and re-uploading. Large files may also time out — try compressing them first with our PDF Compressor tool.

Merge PDF Files Online — Free & Instant

Our free PDF merger combines multiple PDF documents into a single file instantly. Upload your PDFs in any order, rearrange them with the up/down controls, and download the merged result — all without creating an account or installing software. Files are processed in memory on our server and discarded immediately after download. Perfect for combining reports, contracts, invoices, presentations, and any other PDF documents.

Drop PDF files here or click to upload

PDF files · up to 20 files · 100 MB total

How to Use the Merge PDF Files Online — Free PDF Merger

1
Upload two or more PDF files by dragging them into the upload area or clicking to browse.
2
Arrange the files in the order you want using the up and down buttons.
3
Click 'Merge PDFs' to combine them into a single document.
4
Download your merged PDF instantly — no account required.

Why Use Merge PDF Files Online — Free PDF Merger?

Dealing with multiple PDF files can be frustrating — attachments scattered across emails, reports split into chapters, or scanned documents saved as separate files. Our PDF merger solves this by combining all your PDFs into one cohesive document in seconds. The merge preserves all original content including text, images, fonts, bookmarks, and hyperlinks from each source file. You control the page order: simply upload your files and reorder them with the arrow buttons before merging. No watermarks are added, no quality is reduced, and no data is stored after processing.

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