Lossless recompression, and fast web view.
Drop PDF here or click to select
Single file
Add the file to compress.
Click Compress to rewrite the file in memory.
Save the optimized copy.
Zro7 rewrites the file with object-stream compression, removes duplicated resources and enables fast web view — all lossless.
No. This is a structural, lossless compression — images are not re-encoded.
Already-optimized PDFs (like those exported from modern editors) have little room to shrink further.
Encrypt a PDF with a password and set permissions.
Remove a password and its restrictions.
Re-encrypt with a new password in one pass.
Combine PDFs into a single document.
Break a PDF into one file per page, or N pages.
Pull a page selection into a new document.
Rotate pages, relative or absolute.
Remove a selection, keep the rest.
Zro7