PDF tools right in your browser.
A fast, focused PDF toolkit that runs entirely on your device. Merge, split, redact, convert Word docs, and turn images into PDFs — nothing ever leaves your computer.
Quick merge — 2 PDFs
Drop a file into each slot. They'll merge in the order shown: slot 1, then slot 2.
Quick merge — 3 PDFs
Drop a file into each slot. They'll merge in the order shown: slot 1, then 2, then 3.
Bulk merge
Drop up to 20 PDFs, select which to include, reorder them, and merge.
Drop PDFs here
Drop PDFs here or choose files from your computer. Only selected PDFs are merged, and order follows the list below.
Tips & limits
- 20 PDFs can be loaded at once.
- 2 to 20 selected PDFs can be merged.
- Merge order follows the list, top to bottom.
- Chrome and Edge can ask where to save; other browsers download normally.
Loaded PDFs
Select files and arrange the top-to-bottom merge order.
DOCX → PDF
Drop a Word document and we'll re-typeset it as a clean PDF using Mammoth + pdf-lib.
Text-focused conversion. The DOCX is re-typeset with Helvetica on A4 pages.
- Preserved: paragraphs, headings, bold, italic, bullet and numbered lists.
- Not preserved: images, tables, columns, headers/footers, exact spacing.
- For a pixel-perfect copy of a complex Word doc, use Word's own “Save as PDF”.
Split PDF
Drop a PDF, pick the pages to extract (e.g. 1-3, 5, 8-10), and download.
Images → PDF
Drop JPG or PNG images. Each image becomes a page, in the order shown.
Drop images here
JPG and PNG supported. Drag to reorder, click × to remove.
Fill & Sign
Fill form fields, drop in text anywhere, and add a hand-drawn or typed signature.
Not a digitally certified signature.
- These are visual e-signatures (like DocuSign's basic flow) — fine for everyday agreements.
- They are not cryptographically certified (PAdES / PKCS#7) and carry no tamper-evident certificate chain.
- For court-grade signatures use a certified service: Adobe Sign, DocuSign with KBA, or a notary.
Make Fillable
Drop a flat PDF, draw boxes where people should type or tick, and export an interactive form anyone can fill in their PDF reader.
Manual fields — no auto-detection.
- You place every field yourself; the exported PDF has real interactive AcroForm fields.
- Recipients can fill it in any standard reader (Acrobat, Preview, browsers) and save their answers.
- This isn't a full form designer — just text boxes and checkboxes for simple forms.
Redact PDF
Drop a PDF, then click-and-drag on any page to cover content with solid black boxes.
Visual redaction only. Solid black rectangles are drawn over the page content.
- The covered area is hidden visually.
- Underlying text may still be recoverable by copy-pasting or text extraction.
- For highly sensitive documents, flatten the PDF afterwards (e.g. print to PDF).
How it works
Drop a file
Pick a tool, then drop your PDF, DOCX, or images. Nothing is uploaded.
Process in-browser
The work happens on your device using open-source PDF libraries.
Download the result
Save the new file straight from your browser. Originals stay where they are.
Frequently asked
The honest answers we wish more web tools gave up front.
Is Perged really 100% local?
Yes. Your files are read by JavaScript running in your browser and processed in memory; they're never sent to any server. The PDF, DOCX and rendering libraries are bundled with the site under /vendor/, so even those don't reach out to anyone.
You can verify it: open your browser's network tab, run a merge, and watch — no requests go out.
Is there a file-size limit?
There's no hard cap, but the math is constrained by your device's memory. As a rough guide most laptops handle PDFs up to a few hundred MB comfortably; phones are happier under ~50 MB. Very large or image-heavy PDFs can be slow because every page must be parsed in memory.
Why is text recoverable after redaction?
Redact mode draws a solid black rectangle on top of the page. It hides the content visually, but the underlying text objects remain in the PDF and a determined viewer could extract them. For truly destructive redaction, flatten the PDF afterwards (e.g. "print to PDF") — that rasterises the page so only the pixels remain.
How is DOCX → PDF different from Word's export?
Perged re-typesets the document with a clean Helvetica layout on A4 pages, preserving paragraphs, headings, bold/italic and bullet/numbered lists. Things like images, tables, headers/footers, and exact spacing aren't carried over. If you need a pixel-perfect copy of a complex Word file, use Word's own "Save as PDF" — this tool is for the common case where you just need a tidy PDF of the text.
Does it work offline?
Once the page has loaded, yes. You can disconnect your network and every tool keeps working. The page itself is a single HTML file plus a few JavaScript libraries, all served from the same origin.
Are signatures legally binding?
They're visual e-signatures — the same shape that DocuSign's basic flow produces, and fine for everyday agreements. They are not cryptographically certified (PAdES / PKCS#7) and carry no tamper-evident certificate chain. For court-grade signatures use a certified service such as Adobe Sign, DocuSign with KBA, or a notary.