Linearize PDF

QPDF rewrites the file so the objects needed for the first page come first, adds a linearization dictionary and hint tables, and rebuilds the cross-reference table. The pages, fonts, images, links, and form fields are unchanged; only the byte order inside the file is different.

Fast Web View is Acrobat's name for linearization, and running the file through this tool sets it to Yes. That holds only if you don't edit the PDF again afterward, because almost any later change, such as merging, adding pages, or resaving from most editors, removes the linearization.

No. It's a structural reorder, not compression, and the hint tables add a small amount, typically under 1 percent. To shrink the file, run Compress PDF first and linearize last.

Only if the server supports HTTP byte-range requests, which most static hosts and CDNs do. A viewer such as pdf.js or a browser's built-in viewer can then fetch the first page and start rendering while the rest downloads, instead of waiting for the whole file.

The tool always packages its output as linearized-pdfs.zip, with each file inside renamed to linearized- followed by the original name. Unzip it to get the PDF.

The batch continues with the other files, and the completion message tells you how many succeeded and how many failed. Damaged files are the usual cause; run them through Repair PDF and try again.

No. QPDF runs as WebAssembly inside your browser, reading and writing the files in memory on your device, and the ZIP is generated locally. Nothing is sent to a server even though the output is meant for web publishing.