Silviu Anca

I grew up in Moara Vlăsiei, a village just outside Bucharest, and studied mathematics and computer science at the Colegiul Național „I.L. Caragiale” in Bucharest. I got a 10 — the top mark — in mathematics at the Romanian baccalaureate, and went on to study Automatic Control and Computers at the Politehnica University of Bucharest.

It started with tutoring: in high school I helped a few younger students with maths and physics for free, and over the years more than 100 students have worked with me. To turn that into something lasting I founded AXS LEARNING SRL, which today builds education platforms — among them AXS Liceu, used by more than 6,500 students and parents to prepare for the national high-school admission, and Era Lumis, which marks practice exams against the official grading scheme.

Why AXS PDF exists

AXS Tools — AXS PDF and its sister sites — are built on three rules: do the job in your browser wherever that's possible, so files stay on your device; stay free for everyday use; and say plainly when a file does have to be processed on a server, and what happens to it there.

How we build and test the tools

Every tool is tested end to end in a real browser with real files, and the output is checked — not just whether a button responds. For PDFs that means: page count, page order, rotation and page size of the result, the text that can still be extracted from it, and a rendered image of each page to look at.

The test files are the ones that break PDF tools in practice: scans stored with a rotated page, documents protected with a password and ones protected only against editing (like bank statements), Romanian text with ă, ș and ț, phone photos saved sideways, 18 MB image-heavy files and Word, Excel and PowerPoint documents with tables, colours, headers and page breaks.

The numbers quoted on the tool pages — for example a scan-heavy PDF going from 18.3 MB to 2.9 MB — come from those tests, and the pages are updated when a tool changes.

Contact

Found something that doesn't work, or a result that looks wrong? Write to office@axslearning.ro. More about me at silviuanca.com.