Four of six steps can bin a resume before a human sees it, and the worst is an image-only PDF

A parser reads the content stream, not the page, and extraction depends on text-showing operators that a JPEG in a PDF wrapper does not contain ^[8]. Nothing on the rendered page warns anyone, which the author calls the single highest-value check in job hunting right now, ahead of any keyword advice ^[18]. An empty parse is not an error state anywhere in this chain. It is a valid outcome that looks like a candidate with no history ^[2].

The next step is quieter, because it produces plausible wrong answers rather than blanks. Parsed text is mapped into name, email, employers, dates, titles and education ^[4]. Reading order in a PDF is not visual order, so a parser walking a two-column layout can interleave the left column into the right, and a five-year role at one employer comes out as three months at another ^[5]. The recruiter never sees the file that would settle it. What arrives is a row in a list holding the parsed version ^[15].

Then the rules run. Work authorisation, notice period, location, salary expectation, sometimes a years-of-experience number, all evaluated against thresholds the recruiter configured, before anyone opens anything ^[10]. On many forms a blank is scored as a disqualification rather than an omission ^[11], and the form does not say so: no message, and no entry in the queue a human reads ^[17].

The fourth silent step should trouble anyone who builds against these systems. According to the author, one hiring platform rendered a clean confirmation page while separately recording a refusal for the same submission ^[12], and another refused a complete application, every field filled and a valid token attached, because an automated reputation score sat under a threshold, with the reason legible only in the response body ^[13].

Four of six is two thirds of the distance to a human being, closed by machinery that forms no opinion about the applicant ^[19]. What those failures have in common is more useful than the ratio: each is cheap to detect from inside the pipeline and impossible to detect from outside it. The author's own exporter shipped text-free files for months while the author's own importer read them back empty, in a shop that instruments this for a living ^[8]. A recruiter staring at thin applicant flow and a candidate staring at silence can be looking at the same missing text layer, and neither can see it.

The one artefact that crosses that line is the automated acknowledgement, which arrives within seconds to a couple of minutes from the vendor's or the company's domain and is the only proof the application exists ^[14]. Its absence is information about the submission rather than about the candidate ^[16].