PDF A4 check
ClientPreflight A4 vs other page sizes.
About PDF A4 check
Check whether page 1 matches A4 (595×842 pt). The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.
How to use this page
Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.
Common use cases
- PDF A4 check for quick local checks without uploading data.
- Copy results into tickets, docs, or classroom notes.
Common mistakes to avoid
Unexpected input shape
See the intro and how-to notes for accepted formats.
FAQ
Is processing local?
Yes—this runs entirely in your browser.
Agent prefill?
Open the page directly—multi-field or file inputs are not URL-prefilled.
More tools
Related utilities you can open in another tab—mostly client-side.
PDF info
ClientInspect page count, metadata, and encryption status—processing stays in your browser.
PDF US Letter check
ClientCheck whether page 1 matches US Letter (612×792 pt).
Split PDF
ClientExtract a page range or download one PDF per page—processing stays in your browser.
PDF tools
ClientHub for browser PDF utilities—merge, split, convert, edit pages, and extract text.