Free online tools for PDFs, images, file conversion and SEO checks

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Check my domain's DNS · Convert my file to another format · Merge my PDFs into one · Split my PDF · Make my PDF smaller · Turn my PDF pages into images · Turn my PDF into an editable Word file · Turn my Word, Excel or PowerPoint into PDF · Rotate, delete or keep only some pages · Add page numbers to my PDF · Stamp a watermark on my PDF · Put a password on my PDF · Remove a password from my PDF · Get the text out of my PDF · Check my whole site's SEO · Check one page properly · Find my broken links · Make me a QR code · Combine Multiple Images to One PDF · Combine my images into one · Capture my website's pages · Get an app's screenshots · Resize my image for social media · Make my image smaller