SS
Key Takeaways
- Most fatal resume errors are trivial — a wrong name, a dead link, an old phone number.
- Run the same check every time. A habitual list catches what attention alone misses.
- Check the exported PDF, not the source document, because conversion changes things.
- Five minutes is enough for the whole list once you are used to it.
- The most damaging error is the previous employer's name, and it is entirely preventable.
The twelve checks
The list, ordered by how much damage each catches.
The company name is correct throughout, including in the summary and any cover letter. Search the document for the previous employer's name before every send.
The role title matches what you are applying for rather than a leftover from the last application.
Contact details work. The phone number is current and the email is one you check and will keep.
Links resolve. Portfolio, professional profile and project links all open, and none point at a deleted or private page.
Dates are consistent in format and contain no accidental overlaps or gaps you did not intend.
The filename is professional and identifies you rather than describing your revision history.
The file format matches what the employer asked for.
Spelling of proper nouns is right — company names, tools, certifications and your own job titles.
The summary addresses this role rather than a general statement or a previous target.
Required keywords from the posting appear somewhere they belong.
The page count is deliberate rather than accidental, with no orphaned final line spilling onto an extra page.
And the PDF renders correctly when opened fresh, with fonts, spacing and bullets intact.
What conversion breaks
Why checking the export matters more than checking the source.
| What changes | How it shows |
|---|---|
| Fonts not embedded | Substituted typeface, altered spacing |
| Text boxes and columns | Content reordered or lost when parsed |
| Headers and footers | Contact details invisible to parsing |
| Images of text | Entirely unreadable to screening |
| Special characters | Rendered as boxes or omitted |
| Tight spacing | An extra page appears |
Open the exported file rather than trusting the editor. The document you looked at while writing is not the document the employer receives.
Contact details in a header or footer are a recurring and invisible failure, because parsing frequently ignores those regions entirely.
And text stored as an image is the most complete failure available, since nothing can read it at all.
The periodic update
What to revisit every few months rather than every application.
Add achievements while you remember them. The single hardest part of resume writing is recalling what you actually did two years ago, and a note written at the time solves it permanently.
Update your current role's description as its scope changes, since the version written when you joined stops being accurate quickly.
Refresh quantified results as projects complete and numbers become available.
Review the older roles for compression. Experience from many years ago needs less space than it originally occupied, and reclaiming that space is usually the easiest way to fit a page limit.
Remove obsolete skills and tools that no longer signal anything useful.
Check that certifications are current and remove or mark any that have lapsed.
Update the education section's prominence, since it moves down the page as your experience accumulates and eventually becomes a single line.
And re-read the whole thing as a stranger would, which catches the accumulated shorthand that made sense when you wrote it and no longer does.
Keeping a master version
The document that makes every application easier.
Keep one long master resume containing everything — every role, every achievement, every tool, with no length constraint at all.
Tailored versions are extracted from it rather than written from scratch, which turns each application into selection rather than recall.
The master is never sent. It exists to be cut down, and its length is a feature rather than a problem.
Update the master, not the tailored copies. New achievements go into the master once, and every future tailored version inherits them automatically.
Include the detail you would normally cut — the specific numbers, the tool versions, the exact scope — because that detail is what you need when a posting happens to ask for it.
And keep it in a plain, editable format rather than a design-heavy one, since its only job is to hold content that gets moved elsewhere.
Mini checklist
- unchecked: Previous company name searched for and removed
- unchecked: Role title matches this application
- unchecked: Phone and email current and working
- unchecked: All links open correctly
- unchecked: Dates consistent and intentional
- unchecked: Filename professional and identifiable
- unchecked: File format as requested
- unchecked: Proper nouns spelled correctly
- unchecked: Summary specific to this role
- unchecked: Posting keywords present
- unchecked: Page count deliberate
- unchecked: Exported PDF opened and checked
Scenarios
Scenario 1: You are applying to several roles this week
Run the full list on the base document once, then run only the first three checks per application. Those three catch the errors that are specific to individual sends.
Scenario 2: You have not applied in several years
Run everything, and add a review of the links and contact details in particular. Old portfolio URLs and university email addresses are the most common stale items.
Scenario 3: The employer asked for a specific format
Follow it exactly, and check that the converted file survived the change. A document that looks correct in one format frequently does not in another.
Tip: Before every send, use your editor's find function to search for the name of the last company you applied to. This single check takes ten seconds and catches the error that most reliably ends an otherwise strong application.
Do's and Don'ts
Do
- Run the same list every time
- Check the exported PDF, not the source
- Search for the previous company name
- Keep contact details in the body, not the header
- Test every link before sending
- Match the requested file format
Don't
- Trust the editor view
- Put contact details only in a header
- Use version numbers as filenames
- Leave links unchecked
- Assume dates are consistent
- Skip the list because you are in a hurry
Common Mistakes
- The previous company's name. The most damaging and most preventable error.
- Contact details in the header. Frequently invisible to parsing.
- Dead portfolio links. They suggest carelessness immediately.
- Unchecked exports. Conversion changes the document.
- Version-numbered filenames. Visible and unprofessional.
- Stale contact information. An unreachable candidate is not contacted.
Related Guides
Keep building on this with the related guides in this series:
- How to Name Your Resume File
- ATS File Format Guide
- ATS Resume Formatting Mistakes
- When the Deadline Is Tomorrow
- Resume Red Flags Recruiters Notice
You can also check your resume's ATS score for free, generate a tailored cover letter, or build a portfolio website in minutes.
Frequently Asked Questions
What should I check before sending a resume?
Company name, role title, contact details, links, dates, filename, file format, spelling of proper nouns, a role-specific summary, posting keywords, page count, and the exported PDF itself.
Why check the PDF rather than the document?
Because conversion changes things. Fonts substitute, spacing shifts, columns reorder and headers become invisible to parsing. The exported file is what the employer actually receives.
What is the most common fatal error?
The previous employer's name left in the document. It is noticed immediately, it ends the application, and a ten second search prevents it entirely.
Should contact details go in the header?
No. Many parsing systems ignore header and footer regions completely, which can make you unreachable. Keep them in the body of the first page.
How long should this check take?
Around five minutes once it is habitual, and less for repeat applications where only the role-specific items need rechecking.
Does the filename really matter?
Yes. It is visible to the recruiter, and a name like resume-final-v4 reads exactly as carelessly as it sounds. Use your name and the role.
What should I update every few months?
Add achievements while you still remember them, refresh your current role's scope, update quantified results, compress older roles, remove obsolete tools, and check that certifications are still current.
What is a master resume?
One long document containing every role, achievement and tool with no length limit. It is never sent — tailored versions are extracted from it, which turns each application into selection rather than recall.
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