PDF Web Optimize Tool Online

How to Shrink a PDF for the Web

1. Drop your PDF onto the tool, or click to browse for it.
2. Pick a Quick Preset. Web Ready (108 pixels per inch) is preselected and works for most files. Screen (72) gives the smallest file; eBook (144), Office (180) and Print (216) keep small type sharper. Moving the quality slider or the resolution menu switches you to Custom.
3. Adjust the settings if you want. On the Image tab set Image Quality (30% to 98%), the Render Resolution and the Image Format, JPEG or PNG. On the Output tab choose Full color (default) or Grayscale, and the Page Range: all pages, first page only, or a custom list such as 1,3,5-8.
4. Click Optimize PDF. The pages are redrawn one by one in your browser.
5. Compare the sizes. The result panel shows the original and new size. If your PDF is already compact, mostly text or vector, the tool keeps your original and says so instead of making it bigger.
6. Click Download Optimized PDF.

What This PDF Web Optimizer Does

• Your file stays on your device. Pages are redrawn and the new PDF is built by your browser. Nothing is uploaded.
• Presets or full control. Six presets, plus manual settings for image quality, resolution, format (JPEG or PNG) and grayscale.
• Only the pages you need. Export all pages, the first page, or a custom list and range.
• See the result before you save. The size before and after appears next to the download button.
• Room for real documents. Your file size limit is shown on this page, and a free account raises it.

Good to know: this tool rebuilds your PDF from page pictures. It does not linearize it, so it is not the Fast Web View format that lets a browser show page one before the rest has downloaded. Because every page becomes a picture, the text can no longer be selected or searched, and links, bookmarks and form fields are lost. It pays off on scans and image-heavy PDFs, where files often shrink by half or more. Text and vector PDFs usually do not get smaller, so the tool keeps your original in that case. Pages keep their original size. Grayscale turns the colors gray but saves little space, because the pictures are still stored as color images. Keep your original if you need its text.

FAQ

Does this make a linearized PDF with Fast Web View?

No. It rebuilds the PDF from page pictures to make it smaller. The result is not linearized, so it does not start displaying before the whole file has downloaded.

Can I still select text in the optimized PDF?

No. Each page is redrawn as an image, so the text becomes part of the picture. Links, bookmarks and form fields are also lost. Keep your original if you need any of those.

Which preset should I use?

Web Ready is the default and works for most files you plan to post or send. Choose Screen for the smallest file, or eBook, Office and Print when small text needs to stay readable. All of them are meant for viewing on screen.

Why did the tool keep my original file?

A PDF that is mostly text or vector gets bigger when every page becomes an image. When that would happen the tool keeps your original instead of handing you a larger file. For text PDFs, a different compression approach is a better fit.

Is my PDF uploaded to a server?

No. Your file stays on your device. Your browser redraws the pages and creates the new PDF, so the document never travels anywhere.

Is there a file size limit?

Your file size limit is shown on this page, and a free account raises it.