PDF Tools
Merge several PDFs into one document, or split a PDF by page range or fixed chunks — every page is copied locally in your browser.
1 tool
A PDF is not a document format in the way a word-processor file is: it is a set of instructions for placing marks on fixed-size pages. There is no notion of a paragraph that can reflow, which is why a PDF renders identically everywhere and why editing one properly requires the original source. That same fixed-page model is precisely what makes page-level operations — merge, split, reorder, rotate, delete — exact rather than approximate.
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About PDF Tools
This is the category where local processing matters most. The PDFs people need to combine are contracts with signatures, bank and brokerage statements, tax returns, boarding passes, insurance policies and scans of identity documents. Uploading those to an unknown server in order to staple two files together is a poor trade, so the whole operation happens in your browser using your own machine.
The limits are worth stating plainly, because they follow from the format rather than from the implementation: page-level operations are exact and lossless, while anything that requires understanding the content — optical character recognition, text editing, form filling, shrinking a scan — is either not offered or carries explicit caveats inside the tool.
Frequently asked questions
Are my documents uploaded to a server?
No. Files are read into the page, processed in the browser and assembled into a new file locally, with no upload and no server-side copy. That is deliberate: a merged PDF usually contains material you would not email to a stranger, including account numbers, signatures and identity documents. The tool continues to work with the network disconnected, which is the practical way to verify the claim instead of taking it on trust.
Does merging reduce quality or alter the pages?
No. Merging copies page objects into a new document, so page content streams, embedded fonts and images are carried across rather than re-rendered. There is no rasterisation step, meaning text stays selectable, vectors stay sharp and images are not recompressed. The visible result is the same pages in a new order, with the original page boxes and rotations preserved.
Can I merge password-protected files?
Not while they remain encrypted. A PDF encrypted with a user password needs that password before its page content can be read, and the pages cannot be copied out without it. This tool cannot bypass that by design — the encryption is doing its job. Decrypt the file in a viewer you trust (which requires knowing the password) and merge the decrypted copy. Files merely restricted by an owner password, with no open password, can generally be processed, since the restriction expresses intent rather than acting as an encryption barrier.
Why is the merged file sometimes smaller or larger than the sum of its parts?
Both directions occur and neither signals a problem. Smaller is common when the inputs share fonts or images, because a PDF can store a font once and reference it from many pages, so merging deduplicates those resources. Larger happens when the inputs were produced by different tools with different internal structures, since the merged file has to represent all of them. A substantially larger result usually traces to an input that stored the same image repeatedly.
Can it split a file into single pages?
Yes. Splitting extracts whole pages into a new document, which is exact in the same way merging is, and the resulting files keep their text, vectors and embedded fonts. What splitting cannot do is divide content within a page — a two-column statement scanned as a single page cannot be cleanly separated into two documents, because there is only one page object to work with. For that you need the original source or an OCR pass, and the result is a reconstruction rather than a copy.
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This space is reserved for a sponsor. Every tool on this site stays free and runs locally in your browser.