Merge PDF
Combine PDFs — and images or Word, Excel, PowerPoint files — into one PDF
Supports up to 2,000 pages combined (files up to 700 MB total). PDFs and images are merged in your browser.
Click to add PDFs, images, or Office files
About Merge PDF
Merge PDF joins files into one PDF in the order of the list. PDF files are combined page by page and keep their own bookmarks and form fields; an image (JPG, PNG, HEIC, WebP, GIF, BMP, TIFF, AVIF) becomes one page at its own size, turned upright, and a multipage TIFF one page per image; a Word, Excel, or PowerPoint file is first converted to PDF on our server. By default, each file gets a bookmark named after it, and two form fields with the same name in different files are renamed so each keeps its value. Except for those Office files, everything is merged in your browser.
How to merge PDF files
- 1Click the upload area and add two or more files: PDFs, images, or Word, Excel, and PowerPoint documents.
- 2Drag a row to reorder it with a mouse, or use the ↑ and ↓ arrows next to it.
- 3Uncheck "Add a bookmark for each file" if you do not want them, then click "Merge PDFs".
- 4Take the combined file, merged.pdf, with the "Download" button.
Formats and limits
- Input formats
- PDF; JPG, PNG, HEIC, WebP, GIF, BMP, TIFF, AVIF; DOC, DOCX, ODT, RTF; XLS, XLSX, CSV, ODS; PPT, PPTX, ODP
- Files at once
- Two or more, in the order of the list
- Office files
- Up to 100 MB per document and 60 MB per spreadsheet
- Total size
- The combined cap of all listed files is printed above the upload area; smaller on phones and tablets
- Usage limits
- .docx conversions are limited per network per hour and per day within a monthly budget for the whole site; any Office file over 4 MB also counts against a per-network hourly and daily upload limit
- Result
- merged.pdf, with one bookmark per file if you keep the option
Where your file is processed
Only the Office files you add are sent to our server; PDFs and images are merged in your browser and are not uploaded. Each Word, Excel, or PowerPoint file you add is sent to our server to be converted to PDF: a .docx goes to ConvertAPI with file storage turned off, or to our own LibreOffice service when ConvertAPI is unavailable (the page tells you), and other Office formats go to our LibreOffice service (Gotenberg). An Office file over 4 MB first travels through our server.
Frequently asked questions
Can I merge PDF and JPG files together?
Yes. Each image becomes one page sized to the picture and turned upright from its orientation tag, placed between your PDFs in list order, and a multipage TIFF gives one page per image. Besides JPG, the tool reads PNG, HEIC, WebP, GIF, BMP, TIFF, and AVIF.
Can I merge Word or Excel files with PDFs?
Yes. Each Office document is converted to PDF on our server first, up to 100 MB per document and 60 MB per spreadsheet; a file over its limit is refused before anything is sent. Conversions of .docx files, and uploads of any Office file over 4 MB, are limited per network per hour and per day.
Does merging lower the quality?
No for PDF files: their pages are copied as they are. JPG and PNG pictures go in without re-encoding; a TIFF, or a HEIC your browser cannot open itself, becomes a lossless PNG; WebP, GIF, BMP, AVIF, mirrored JPGs, and HEIC photos your browser opens are re-encoded as JPG, or PNG when transparent. A .docx made by our backup LibreOffice service can differ from Word.
Are bookmarks and form fields kept?
Yes. With the bookmark option on, each file gets a bookmark named after it, with its own bookmarks underneath. Form fields from every file still work; when two files use the same field name, one is renamed and the result message lists the change.
Tips and tricks
- ✓After merging several scans, PDF Compress can make the combined file smaller.