Merge, compress, extract text with OCR, and sign your PDF files instantly. 100% Private — no upload, everything runs directly in your browser.
Combine two or more PDF files into a single document, instantly.
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Reduce PDF file size by adjusting the output quality.
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Extract readable text from any PDF using on-device AI OCR.
Draw your signature and place it on your PDF document.
Split, rotate, and convert your PDFs — all processed locally in your browser, just like the tools above.
Extract specific pages or a page range into a new PDF file.
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Rotate every page in your PDF by 90°, 180°, or 270°.
Convert every page of your PDF into a downloadable JPG image.
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Combine one or more JPG/PNG images into a single PDF file.
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No installs, no accounts, and no waiting on server queues. Everything happens locally on your device in three simple steps.
Pick Merge, Compress, OCR, or Sign based on what you need to do with your PDF.
Your file is read and processed using JavaScript directly on your device — nothing is ever uploaded.
Once processing finishes, your new file downloads straight to your device automatically.
No. AI PDF Tools is built as a fully client-side application. When you select a file, it is loaded straight into your browser's memory using the File API and processed with JavaScript libraries such as pdf-lib and Tesseract.js. At no point does the file leave your device or touch our servers, which means there is no upload step, no waiting on bandwidth, and no risk of your documents sitting on a remote disk. This design also means the tools keep working even if you temporarily lose internet access after the page and its libraries have loaded, since the actual document processing does not depend on a live connection.
Each page of your PDF is rendered onto an in-memory canvas using pdf.js, then handed to Tesseract.js, an open-source optical character recognition engine that runs entirely inside your browser using WebAssembly. Tesseract analyzes the pixels on each rendered page and predicts the underlying characters, producing plain text you can copy or edit. Because the recognition model runs locally, extraction speed depends on your device's processing power and the number of pages, rather than on server load or a queue of other users' requests.
The compression tool works by rendering each page as an image and re-encoding it at the quality level you choose on the slider. Lower quality settings produce smaller files but reduce sharpness, particularly around small text and fine lines, while higher settings preserve more detail at the cost of file size. This approach is common among online PDF compressors because it gives predictable, adjustable results, though it does mean that compressed pages are no longer selectable text — they become images of the original page instead.
There is no hard-coded limit built into the tool itself, but because everything runs in your browser's memory, very large files or documents with hundreds of pages may run slower or use more RAM depending on your device. For the smoothest experience, we recommend testing large documents on a desktop browser with a modern processor.
No account, email address, or sign-up is required for any of the four tools. Simply open the page, choose a tool, select your file, and download your result.
Upload your file in the Split PDF tool and the page counter will show you how many pages the document contains. Then type the pages you want in the text box, for example "1-3, 5, 7" to extract pages one through three plus pages five and seven. The tool builds a brand-new PDF containing only those pages and downloads it automatically, leaving your original file untouched.
Each page of your PDF is rendered as a separate high-resolution JPG image. If your document has more than one page, all of the resulting images are automatically packed into a single ZIP file so you can download everything in one click instead of saving each page individually. Single-page PDFs are downloaded directly as one JPG file.
Yes. The Images to PDF tool accepts multiple JPG or PNG files at once, regardless of where they came from — a scanner, a phone camera, or a screenshot. The images are added to the new PDF in the same order you selected them, with each image placed on its own page at its original size.
No. Unlike compression, rotation only changes the page's orientation metadata using the pdf-lib library — it does not re-render or rasterize the page. This means your text stays fully selectable and searchable, and there is no loss of image quality after rotating.
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