Merge Diff

To merge PDF files free online, upload your documents to Transfonic's PDF Merge tool, arrange them in the order you want, and download the combined file in seconds. No signup, no watermark, no file size limits for standard use.

This guide covers the full JPG vs JPEG story, when and why you might need to change between them, and how to convert your JPEG to other formats like WebP, BMP, TIFF, and SVG using Transfonic's free Image Conversion tool — no software, no signup required.

Saving a Word document as a PDF is one of the most common things people do with Microsoft Word — and one of the most misunderstood. Some versions of Word call it "Save As." Others call it "Export." On Mac, it's buried under a different menu. On mobile, it works differently again.

You have a low-resolution image — a blurry product photo, an old family picture, a small logo, or an anime illustration and you need it sharper, larger and print-ready. Traditional resizing just stretches pixels and makes things worse. AI image upscaling works differently and in 2026, the technology has reached a point where free online tools deliver results that were once only possible with expensive desktop software.