A via impressa mostra a atividade remunerada.

In this sentence, via is a noun, not the preposition via meaning through.

Here a via means the copy or the document copy, especially in formal or bureaucratic language.

So a via impressa means something like:

• the printed copy
• the printed version
• the hard copy

This use is common in administrative, legal, and official contexts in Portuguese.

Because via is a feminine noun in this meaning.

That means the article and adjective must also be feminine:

• a via
• impressa

This is grammatical agreement:

• a = feminine singular article
• impressa = feminine singular adjective/past participle

If the noun were masculine, you would expect o and impresso, but that is not the case here.

Both impressa and imprimida can come from the verb imprimir (to print), but in practice impresso/impresso(a) is very common as an adjective meaning printed.

So:

• via impressa = printed copy
• documento impresso = printed document

Imprimida is also possible in some contexts, but impressa is the more natural and common choice when describing something as physically printed.

Mostra is the third person singular of mostrar:

• mostrar = to show
• mostra = shows

Since the subject is a via impressa (the printed copy), the singular verb mostra is correct.

So the structure is:

• A via impressa = subject
• mostra = verb
• a atividade remunerada = object

That a is the definite article the.

So:

• atividade = activity
• a atividade = the activity

Portuguese uses definite articles more often than English does. In a sentence like this, Portuguese normally uses a because it is referring to a specific item or status being shown in the document.

Literally, it means paid activity or remunerated activity.

In real-world Brazilian usage, especially in official documents, it usually refers to:

• paid work
• income-earning activity
• whether someone performs paid professional activity

So even though the literal words are straightforward, the phrase often has a formal administrative meaning rather than sounding like everyday speech.

It is understandable in everyday Portuguese, but it sounds more formal and bureaucratic than conversational.

In normal speech, people might more naturally say things like:

• trabalho pago
• trabalho
• atividade profissional
• exerce atividade remunerada

But in forms, records, registrations, and official statements, atividade remunerada is very common.

In Portuguese, adjectives often come after the noun.

So:

• atividade remunerada = remunerated activity
• literally: activity remunerated

This is a very normal word order in Portuguese. Some adjectives can come before the noun, but here the post-noun position is the standard one.

In Brazilian Portuguese, via here is usually pronounced as two syllables:

• vi-a

Approximate English-style help:

• VEE-ah

And the full phrase:

• a via impressa

would sound roughly like:

• ah VEE-ah im-PREH-sah

The stress in impressa is on pre.

Not in this sentence.

That would only make sense if via meant road, route, or way, but here it clearly means copy or document copy.

Portuguese words can have multiple meanings, and via is one of them. In official document language, via very often means copy.

Yes, it sounds natural in a formal or official-document context.

It does not sound like casual conversation, but it sounds exactly like the kind of language you might see in:

• government forms
• certificates
• registration documents
• official printouts

So it is grammatically normal and contextually appropriate, especially in bureaucratic Portuguese.

Yes, indica could work in many contexts.

Compare:

• mostra = shows
• indica = indicates

Mostra is a bit more direct and visual: the printed copy shows that information.

Indica sounds slightly more formal or technical: the printed copy indicates that information.

Both are possible, but mostra is perfectly natural here.

The main point is that the verb agrees with via, not with atividade.

Subject:

• A via impressa = singular

So the verb must be singular:

• mostra

Even though atividade remunerada comes after the verb, it is the object, not the subject.

That is why it is:

• A via impressa mostra...

not

• A via impressa mostram...