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CHAAAM FREE OFFICE TOOLS

Merge PDF files into one document

Combine multiple PDFs in the order you choose. Free, no registration, and processing happens in your browser.

✓ Free to use✓ No CHAAAM login✓ Files stay in your browser

Merge PDF files into one document

Add your files, adjust the options, then download the result. Files are processed on your device.

Drag files here or use the file picker

PDF tools accept PDF. Image tools accept JPG, PNG and WebP.

    PDF tools

    Merge PDFCombine documents Extract PDFSelect pages Visual Rotate PDFPreview and rotate View PDFRead in browser Visual Sign PDFDrag signature Bulk Sign PDFSign multiple PDFs Delete PDF PagesRemove pages visually Split PDFOne page per file PDF to PNGExport page pictures Add Text to PDFOverlay notes Watermark PDFDraft and labels Page NumbersNumber pages Images to PDFPhotos to pages

    Image and photo tools

    Merge ImagesJoin pictures Resize ImageChange dimensions Compress ImageReduce file size Crop ImageCenter crop Convert ImagePNG, JPG, WebP Rotate ImageRotate and flip Photo Size & KBExact px and KB

    Everyday office helpers

    Word CounterWords and reading time Text CaseChange capitalization CSV to JSONConvert spreadsheets

    How to use the PDF merger

    Combine project reports, scanned letters, invoices or meeting handouts into one PDF. The order of the files sets the order of their pages. Files never need to be uploaded to CHAAAM.

    1. Add two or more PDF documents.
    2. Use the up/down arrows to set the order.
    3. Click Merge PDFs and download the new document.

    Important: Merging and resaving PDFs may invalidate digital signatures and may not preserve every interactive PDF feature. Password-protected PDFs aren't supported.

    Privacy: CHAAAM does not receive the contents of the files processed here. Your browser downloads a PDF processing library when needed. Processing may consume device memory; use smaller files if your browser becomes slow.

    Need AI to write a document, analyze a spreadsheet or create a presentation? Search CHAAAM for AI tools →

    Library and software notices: Third-party licenses.