Free PDF & File Tools
Merge, split, sign, compress and reorganise PDFs — in your browser, without handing your documents to anyone.
PDFs are the format we reach for precisely because they are meant to be final and unchangeable — which is exactly why editing one is such a nuisance. The tools in this category cover the handful of jobs that come up over and over, and they run on the page rather than on a server.
Reshaping a document. Merge PDF combines several files into one in whatever order you drag them into. Split PDF does the opposite: pull out a page range, or explode a document into one file per page. When a scanner has left everything sideways or upside down, Rotate PDF fixes individual pages with a live preview, and Delete & Reorder Pages removes the blank sheets and shuffles the rest.
Finishing a document. Sign PDF is the one most people arrive for: draw a signature with your mouse or finger (or type one), drop it anywhere on any page, and download a signed PDF — no printing, no scanning, no third party keeping a copy of your contract. Add a Watermark stamps DRAFT or CONFIDENTIAL across every page, and Add Page Numbers handles the formatting a court filing or a thesis needs.
Getting things in and out. Images to PDF turns a folder of scans or phone photos into one tidy document; PDF to JPG and Extract Images go the other way. Compress PDF shrinks a file that is too big to email, and shows you honest before-and-after sizes. For non-PDF bundles, Create ZIP and Extract ZIP package and unpack archives locally.
Whichever you use, the file is parsed and rebuilt by JavaScript in your own tab. Signed contracts, medical records, tax returns and IDs are the documents people most often need to edit and least want sitting in a stranger's upload folder — so we never take custody of them at all.
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PDF tool FAQ
Is it safe to sign a contract with an online PDF signer?
It depends entirely on whether the file is uploaded. Most "free PDF signers" send your document to their server, where it sits in a bucket you cannot audit. ZillaKit's Sign PDF tool never transmits the file: the PDF is opened, stamped with your signature and re-saved inside your browser, so the only copy of the signed document is the one that lands in your Downloads folder.
Why did my PDF barely shrink when I compressed it?
Because compression only has something to work with if the file is image-heavy. A scanned document is a stack of photographs and can often be halved or better. A PDF exported from Word is mostly text and vector data that is already compressed — squeezing it further would mean throwing away the very thing that makes it sharp. Compress PDF shows the real before-and-after size rather than pretending, so you can decide whether the trade is worth it.
Can I edit the actual text inside a PDF?
Not with these tools, and you should be suspicious of anything that claims to do it perfectly. A PDF stores positioned glyphs, not editable paragraphs, so true text editing means reflowing a layout that was never designed to reflow. What you can do here is restructure the document — add, delete, reorder, rotate, sign, watermark and number pages — or use Image to Text (OCR) to pull the words out and rebuild the content elsewhere.