PDFAITools
Complete PDF Toolkit β Free, Fast, Private
Merge, split, compress, convert, protect and edit PDFs directly in your browser. Files are processed locally β never uploaded to third-party servers.
30+ PDF Tools
Β· Convert
Β· Edit
Β· Secure
76
Free Tools
PDF Rotate
Rotate PDF pages by 90Β°, 180Β°, or 270Β°.
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PDF Watermark
Add a custom text or image watermark to your PDF.
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PDF Page Numbers
Add page numbers to your PDF document.
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PDF Delete Pages
Remove unwanted pages from a PDF document.
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PDF Extract Pages
Extract specific pages from a PDF into a new document.
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PDF Annotate
Add notes, highlights, and annotations to PDF files.
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PDF Flatten
Flatten PDF form fields and annotations into the page content.
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PDF Overlay
Overlay two PDFs on top of each other with adjustable opacity.
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Pages per Sheet
Arrange 2, 4, or more PDF pages on a single printed sheet.
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Change PDF Page Size
Resize PDF pages to A4, Letter, A3 or any standard paper size.
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Halve PDF Pages
Split each landscape page into two portrait pages. Ideal for scanned books.
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Bookmark PDF
Add, edit and organise bookmarks and outlines in your PDF.
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Fill Out PDF
Fill in form fields in interactive PDF forms online.
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Reverse PDF Pages
Reverse the page order of a PDF document instantly in your browser.
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Create Fillable PDF Form
Create PDFs with interactive form fields, checkboxes and dropdowns.
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PDF to Grayscale
Convert a colour PDF to greyscale (black & white) to reduce file size and ink usage.
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Frequently Asked Questions
Client-side tools (compress, merge, split) process files entirely in your browser β nothing leaves your device. Server-side conversion tools (Word to PDF, PDF to Excel) upload files securely over HTTPS and delete them immediately after processing.
Most tools support files up to 50 MB. For larger files, try compressing the PDF first.
Yes. The PDF Merge tool lets you add and reorder any number of files before merging.