Question 1

What is the difference between Balanced, Strong, and Maximum?

Accepted Answer

Balanced aims for lighter files with good readability, Strong pushes size reduction further for larger documents, and Maximum makes the strongest quality tradeoff for the smallest output.

Question 2

Can I shorten a PDF by placing 2, 4, or 8 pages on each sheet?

Accepted Answer

Yes. You can keep the original layout, place 2, 4, or 8 PDF pages on each sheet, and combine that layout change with compression or use it on its own. The 2-up layout rotates the output sheet when needed so portrait pages fit more naturally.

Question 3

Why were some PDFs not downloaded automatically?

Accepted Answer

Only files that become truly lighter are downloaded automatically. PDFs that are already optimized or cannot be recompressed safely stay in the results list for review.

Question 4

Can password-protected PDFs be compressed?

Accepted Answer

Not with the current browser flow. If a PDF appears to be password protected, the tool stops instead of trying to recompress it unsafely.

Question 5

Can I compress a PDF for email attachments?

Accepted Answer

Yes. The presets are designed to create lighter files for sharing and email, but the final size still depends on the content of the original PDF.

Question 6

Will PDF compression reduce image quality?

Accepted Answer

It can. Balanced is gentler, while Strong and Maximum trade more image detail for smaller files.

Compress or shorten PDFs for email, sharing, and leaner layouts

Upload one or several PDFs, compress file size, shorten the document with 2, 4, or 8 pages per sheet, or combine both workflows locally on your device.

File size compression

Page grouping

Your files, fully private

Compress PDF FAQ