PDF tools: every PDF tool, right in your browser

Compress, merge, convert, edit and sign PDFs without installing anything. Your files are processed on your device and are never uploaded, unless you choose an AI tool.

Organise PDF

Convert to PDF

Convert from PDF

Edit PDF

  • Edit PDF: Add text, shapes, highlights and images, or white out content.
  • Fill & Sign PDF: Fill in forms and add your signature.
  • Watermark PDF: Stamp text or a logo across pages.
  • Add page numbers: Number pages in any corner and style.
  • Crop PDF: Trim margins or keep part of a page.
  • OCR PDF: Make a scanned PDF searchable and copy its text.
  • JPG to Word: Turn photos and scans of text into an editable Word document.

AI

Why use A1 PDF tools

Private by design

Compressing, merging, splitting, converting and editing all run in your browser. The file never leaves your device.

Every tool in one place

Drop a PDF once and pick what to do with it: compress it, merge it with others, turn it into Word, Excel or PowerPoint, edit it, or fill and sign it.

AI when you want it

Ask questions about a PDF, summarize it or translate it. Only then is the document sent to our AI provider. Chat with PDF

On every device

Works in any browser and in the iPhone, iPad and Android apps. No sign-up and no watermark.

Questions

Are the PDF tools free?

Yes. Compressing, merging, splitting, converting, editing and signing are free, with no sign-up and no watermark on your file.

Are my files uploaded?

No. The PDF tools run in your browser, so the file stays on your device. Only the AI tools (Chat with PDF, Summarize, Translate) send the document to our AI provider to produce the answer.

How big can the PDF be?

Up to 100 MB on this page. Large files take longer on a phone, since the work happens on your device.

Can I edit a PDF online?

Yes. Edit PDF adds text, shapes, highlights and images, or whites out content. Fill and sign fills in forms and adds your signature.