What is PDFFILZ?
PDFFILZ is a free toolkit for everyday PDF work: combining documents, pulling out a few pages, shrinking a file that is too big to email, converting photos into a PDF, and stamping or numbering pages before you send them on.
The difference from most online PDF sites is simple: your document never leaves your device. Everything happens inside this page, so a contract, a payslip or a medical scan stays exactly where it is.
The problem with most PDF tools
Almost every "free" online PDF tool works the same way: you upload a sensitive document — a contract, a payslip, a medical record, a lease — to a server you don't control, wait in a queue, and hope it's deleted afterward. The trade-off is privacy for convenience, and most people don't realise what they're giving up until it's too late. Desktop apps avoid this, but they cost money, are tied to one machine, and don't work on a phone.
Meanwhile, a handful of offline PDF apps have proved there's real demand for a fast, private, free PDF toolkit — but they're native apps locked to one platform, with no web presence and no way to reach the billions of people who just open a browser tab to get something done.
The PDFFILZ solution
PDFFILZ is a privacy-first PDF and file toolkit that runs entirely in the browser. Nothing is uploaded — every merge, split, compression, rotation, signature, redaction, conversion, and even video compression is processed on your own device with a WebAssembly-powered PDF engine. The file never leaves your browser, which means a contract stays a contract and a medical scan stays a medical scan.
It works on any device with a modern browser — phone, tablet, or laptop — installs as a PWA for offline use, and keeps the same fast, touch-friendly interface everywhere. There is no queue, no sign-up wall, and no server that sees your documents.
Who it's for
- Professionals handling sensitive documents — lawyers, accountants, doctors, HR staff — who can't risk uploading a contract or a payslip to a random website.
- Casual users who just need to merge a few PDFs or compress a file to email — without installing a desktop app or creating an account.
- Students and freelancers — merging assignments, converting photos to PDF, compressing files to email, signing documents — all free, all private.
- Anyone who's been burned by an ad-heavy, upload-everything PDF site and wants something that just respects them and their files.
How it works
Nothing is uploaded
There is no server that receives your documents. Files are opened, edited and saved by your own browser.
Real editing, not a preview
Pages are rebuilt with a full PDF engine, so merges, rotations and stamps are written into the real file.
Works without a connection
Once the page has loaded, every tool keeps working offline — handy on a plane or a bad hotel Wi-Fi.
Phone-first design
The same touch-friendly page grid runs on a phone, a tablet and a laptop, and installs as an app.
Everything in the box
- Word to PDFConvert Word documents (.docx) into clean PDFs right on your device — nothing is uploaded.
- PowerPoint to PDFTurn .pptx slide decks into readable PDFs — every slide becomes a page, all on your device.
- Excel to PDFConvert .xlsx spreadsheets into shareable PDFs with every sheet and row laid out in order.
- JPG to PDFDrop JPG photos or scans and get one tidy PDF back, one image per page.
- Compress videoSqueeze MP4, MOV or WebM files down for email and chat limits — encoded privately on your device.
- Sign a documentDraw your signature, place it exactly where it belongs, and export a signed PDF privately.
- Scan to PDFScan paper with your phone or webcam and clean it up into a sharp multi-page PDF.
- Web & HTML to PDFTurn a link or raw HTML into a clean reading PDF you can archive or share.
- Convert anythingImages, text, Markdown, CSV, JSON and HTML files all become PDFs in one step.
- True redactionMark sensitive areas and the text underneath is destroyed — not hidden behind a black box.
- Merge PDFsDrop several PDFs, arrange the order, and save a single document. Nothing is uploaded.
- Split PDFPick page ranges or burst every page into its own file, right on your device.
- Compress PDFReduce heavy scans and image-rich PDFs with a quality dial you control.
- Rotate & reorderDrag pages into place and straighten sideways scans in a visual page grid.
- Rotate PDFRotate a PDF 90, 180 or 270 degrees and save the new orientation permanently — no upload needed.
- Delete pagesSelect the pages to remove and export a clean copy of the document.
- PDF viewerOpen a PDF and page through it with a fast, private reader.
- Images to PDFTurn JPG and PNG images into a single tidy PDF, in the order you choose.
- PDF to imagesSave each page of a PDF as a high-resolution JPG you can share anywhere.
- WatermarkAdd a diagonal text watermark such as DRAFT or CONFIDENTIAL to every page.
- Page numbersDrop clean page numbers along the bottom of the document.
- Extract textPull the text layer out of a PDF and save it as a plain text file.
Free, with an optional Pro plan
Every tool is free to use each day. Pro removes the daily limit and the file size cap for people who work with documents all day long — it keeps the project running without ads or selling data, because there is no data to sell.