PDF Merge & Split Tools - Combine & Separate PDFs Free

Combine multiple PDF files into one document or split large PDFs into smaller files with BentoPDF's merge and split tools. Reorder pages, extract specific sections, alternate merge documents, and organize your PDFs exactly how you need them. Browser-based processing ensures your files stay private. No limits on file count or size.

All PDF Merge & Split Tools

Merge PDF

Combine PDFs

Split PDF

Separate pages

Organize PDF

Reorder pages

Extract Pages

Pull out pages

Delete Pages

Remove pages

Divide Pages

Split into parts

Add Blank Page

Insert pages

Reverse Pages

Reverse order

Alternate Merge

Interleave PDFs

Duplex Collate

Front/back sort

Combine Pages

Join pages

Compare PDFs

Find differences

PDF Booklet

Create booklet

Why Use BentoPDF PDF Merge & Split Tools?

100% Privacy-First

All operations happen in your browser. Your files never leave your device, never uploaded to servers. Complete privacy guaranteed.

Unlimited & Free

Use all tools as many times as you want, with files of any size. No file limits, no tool limits. Completely free forever.

Lightning Fast

Browser-based processing means instant results. No waiting for uploads or downloads. Works offline after page load.

No Signup Required

Start using tools immediately. No account creation, no email, no personal information needed. Just open and use.

Frequently Asked Questions

How do I combine several PDFs into one file?

Add two or more files to Merge PDF and drag them into the order you want. File Mode joins whole documents, with an optional page range per file such as 1-3, 5, while Page Mode lays out every page as a thumbnail so you can build the exact sequence. There's no cap on file count or total pages, and pages are copied without re-encoding, so quality doesn't change.

What are the different ways to split a PDF?

Split PDF has six modes: page ranges, visual selection from thumbnails, even or odd pages only, one file per page, splitting at bookmark boundaries with a choice of bookmark level, and fixed chunks of every N pages. A single range downloads as one PDF, while multiple ranges or per-page output arrive as a ZIP. Bookmark mode needs a PDF that actually contains bookmarks.

What's the difference between Split, Extract Pages, and Delete Pages?

Extract Pages keeps only the pages you list and saves them as a new file, Delete Pages removes the pages you list and keeps everything else, and Split breaks one document into several files. Extract and Delete are inverses of each other, so pick whichever needs the shorter list of page numbers.

Can I reorder pages or duplicate a page?

Organize PDF shows every page as a draggable thumbnail with a duplicate and a delete button on each one. You can also type a complete page order such as 3, 1, 2, 4 to rearrange everything in one step, and Reverse Pages flips an entire document, or a batch of them, in one click.

My scanner put all the front pages first and all the backs after. How do I fix the order?

Duplex Collate handles exactly that: it interleaves the two blocks into front 1, back 1, front 2, back 2 order, with an option to reverse the back block for stacks that were flipped before the second pass. If the fronts and backs are in two separate files, Alternate Merge interleaves pages from multiple PDFs the same way.

How do I print a PDF as a folded booklet?

PDF Booklet reorders the pages into saddle-stitch imposition and shows a preview of each sheet before you download. Print the result double-sided with "flip on short edge", fold the stack in half, and staple at the spine; if the page count isn't a multiple of four, blank pages are added automatically to fill the last sheet.

Can I see what changed between two versions of a PDF?

Compare PDFs pairs up the pages of two documents and highlights differences in text, images, annotations, headers and footers, and formatting, in either a side-by-side or an overlay view. Filters let you hide the change types you don't care about, OCR can be switched on for scanned documents, and the comparison can be exported as a PDF report.

Are my files uploaded when I merge or split them?

No. Merging, splitting, and reordering run as WebAssembly inside your browser, so the files are read from your disk and the result is written back to it without passing through a server. That holds for large scans and multi-file batches too.