Proofreading, Editing or Bilingual Revision: Which Service Do You Need?

A lot of clients ask for “proofreading” when what they really need is something more specific.

Sometimes they need a final check before publication. Sometimes they need a deeper edit because the English is accurate but awkward. And sometimes they need a bilingual reviewer to compare the translation against the source text and catch mistranslations, omissions or terminology problems that a monolingual proofreader would not see.

Those are three different services:

• proofreading

• editing

• bilingual revision

They overlap, but they are not the same. Choosing the right one can save time, avoid duplicated work and make the final text much stronger.

What is proofreading?

Proofreading is the final quality check before a text is published, submitted or delivered.

A proofreader checks for surface-level issues such as:

• spelling

• grammar

• punctuation

• typos

• formatting inconsistencies

• repeated words

• obvious awkward phrasing

• small style issues

Proofreading is best when the text is already in good shape. The structure works, the meaning is clear and the tone is appropriate. It just needs a careful final pass.

For example, if you have a translated website page that has already been reviewed and approved, proofreading can catch small mistakes before it goes live. If you have a business report written in English by a non-native speaker, proofreading can make sure the final version reads cleanly and professionally.

Proofreading is not the right choice if the text still feels rough, confusing or too close to the source language. In those cases, you probably need editing or bilingual revision.

What is editing?

Editing goes deeper than proofreading.

An editor looks at how the text reads as a whole. The focus is not only on correctness, but also on clarity, flow, tone and effectiveness.

Editing may involve:

• rewriting awkward sentences

• improving paragraph flow

• cutting repetition

• strengthening transitions

• adjusting tone for the audience

• making the text more concise

• improving rhythm and readability

• making the English sound more natural

Editing is useful when a text is technically understandable but does not yet feel polished.

This is common in translated or multilingual content. A sentence may be accurate, but still sound like it has been carried over from Spanish, Catalan or French. The grammar may be fine, but the rhythm may feel heavy. The meaning may be correct, but the tone may not fit the audience.

That is where editing helps. It makes the English feel written, not just translated.

What is bilingual revision?

Bilingual revision is different because the reviewer checks the translation against the source text.

This is the right service when you need to know whether a translation is accurate, complete and faithful to the original.

A bilingual reviewer checks for:

• mistranslations

• omissions

• additions

• misunderstood source meaning

• terminology errors

• inconsistent phrasing

• register shifts

• incorrect adaptation

• formatting or layout issues

• fluency in the target language

This is especially important for translated documents where accuracy matters: legal, financial, medical, technical, marketing, website and corporate content.

A monolingual proofreader can make English sound better. But if they cannot read the source, they may not know whether the English says the right thing.

For example, imagine a Spanish sentence is translated into fluent English, but one condition, exception or technical term has been softened or lost. A proofreader might not catch it. A bilingual reviewer should.

How do you know which one you need?

Here is a simple way to decide.

If the English is already strong and you only need a final check, choose proofreading.

If the English is understandable but stiff, repetitive or unnatural, choose editing.

If the text is a translation and you need to verify it against the source, choose bilingual revision.

In many professional workflows, the best result comes from combining services. A translation might first receive bilingual revision to check accuracy, then a final proofreading pass to polish the target text.

What about localization QA?

Localization QA, or LQA, is related to bilingual revision but usually happens within a more structured workflow. It often involves a style guide, error categories, severity levels, terminology databases or an evaluation framework such as MQM.

LQA is common in software, AI-language evaluation, e-commerce, large-scale website localization and agency workflows. It is especially useful when the goal is not just to improve one text, but to identify patterns across many files, languages or deliverables.

A localization QA reviewer might flag whether an issue is an accuracy error, a terminology problem, a fluency issue or a style-guide violation. That makes the feedback easier to act on.

Why the distinction matters

The right level of review depends on risk.

A blog post with a few typos may only need proofreading. A translated contract, clinical document or financial report needs more than that. A website translated into English may need both bilingual revision and editing if it needs to be accurate, natural and persuasive.

The distinction also matters because it affects budget and turnaround.

Proofreading is usually faster. Editing takes more time. Bilingual revision requires the reviewer to work with both source and target texts. LQA may involve formal criteria, comments and reporting.

So when you request a quote, it helps to be specific. Send the source text, the translated text, the deadline, the intended audience and any style guide or terminology you want followed. A good reviewer can then recommend the right level of service.

Final thought

Proofreading, editing and bilingual revision are often treated as interchangeable, but they solve different problems.

Proofreading checks whether the final text is clean.

Editing checks whether the final text reads well.

Bilingual revision checks whether the translation is accurate and complete.

If your English-language content needs to be clear, natural and ready to publish, choosing the right kind of review is the first step.

Need a second pair of eyes on a translated or English-language text? See my Proofreading & Editing services.