FREE ONLINE PDF TOOL

Merge PDF files online

Combine several PDFs into one organized document. Arrange files in the order you need, then merge them in your browser.

Multiple PDF files Drag to reorder No PDF upload

Private by designPDF contents stay on your device

Choose the orderRearrange files before merging

One final PDFDownload when processing finishes

STEP 1 · ADD FILES

Your PDF files

Select two or more PDFs, then arrange them in the order they should appear.

Drop PDF files here or choose files from your device PDF only · Up to 50 files · 100 MB per file · 300 MB total

No PDFs added yet Your selected files will appear here.

Your PDF files are read and merged inside this browser. The tool does not send them to a server or an upload API.

STEP 2 · SAVE RESULT

Merged PDF

Your combined document will be created locally and downloaded to your device.

Output file name

.pdf

Files selected0

Estimated pages—

Total input size0 B

Password-protected, damaged, or unsupported PDFs may fail to merge. Remove password protection first if required.

How to merge PDFs

Add two or more PDF files.
Arrange files in the desired order.
Select Merge PDFs.
Download your combined document.

SIMPLE, PRIVATE DOCUMENTS

Merge PDF files without uploading them

This free PDF merger combines documents directly in your browser. Your PDF contents are not sent to the Infovistar server for processing. The server only delivers the webpage and its static assets. You can reorder files before merging and download one combined PDF when processing is complete.

Local processing

PDF bytes are read by JavaScript in your browser. The tool has no PDF upload endpoint.

Control document order

Move files up or down, or drag them into the order you need before merging.

Download one file

Save your merged PDF with a filename you choose. Original files stay on your device.

COMMON QUESTIONS

PDF merger FAQs

Are my PDF files uploaded to Infovistar?

No. The tool reads and merges the chosen PDF files in your browser. It does not make a file-upload request to Infovistar. The page still loads normal website resources such as JavaScript, analytics, and ads if those are enabled.

Can I merge more than two PDFs?

Yes. You can select multiple PDFs at once or add more files later. This version supports up to 50 files and limits each file to 100 MB, with a 300 MB combined input limit for safer browser memory use.

Can I change the order of pages?

You can change the order of entire PDF files before merging. Reordering individual pages within a file is not included in this version.

Why did a PDF fail to merge?

Some files are password-protected, encrypted, damaged, or use PDF features that the browser library cannot process. Try opening the source PDF and saving a non-password-protected copy, then add it again.

Will merging reduce PDF file size?

This tool combines the pages; it is not a PDF compressor. The merged file may be larger or smaller depending on the source documents and how their content is copied.