Seshat 1.7 works on large print files from disk, converts spot colours and finds more in a file

A catalogue of hundreds of megabytes is an everyday print file. Seshat 1.7 is built for it, and checks more in every file.

Large files

• From disk, not memory. A large file is checked and fixed from disk, step by step. A 440 MB catalogue of 30 photo pages is checked in about 8 seconds, gets its bleed in under a minute and is converted to CMYK in about a minute and a half, all within 3 GB of memory.
• Smaller results. A conversion to CMYK keeps photos as JPEG at their own resolution, so the file does not grow several times its size.
• Preview by link. A page of a file of any size can be previewed by its file_id.
• Never twice. When Seshat stops while working on a file, the answer says so at once; the same heavy work is not started again by itself.

Colour and pages

• Spot colours to CMYK. convert_cmyk converts spot colours too, unless the order allows them. The registration colour of crop marks stays as it is and is not reported as a spot colour.
• White overprint is knocked out however the file sets it; when there is nothing to change, nothing is charged.
• Blank pages added by the pages fix get the same boxes as the page before them.
• Replacing a font removes the old one from the file once nothing uses it.

Safety

• Scripts anywhere. Scripts and actions are found in form fields, annotations and pages, also when they are written inside them; clean_up removes them and reports what it removed.
• Not what it says. A ZIP renamed to .pdf is refused, like a program renamed to .pdf.
• The result's safety. A fix answer reports the safety of the file it made: after clean_up, the file is clean.
• Never unchecked. When a file cannot be inspected for safety, it is not taken; sending it again checks it.

Nothing changes in your code. Use rekhu/core 0.9.1 for Laravel or @rekhu/core 0.9.1 for Node.js; the details are in the docs.