Revisamos la firma manuscrita y la certificación.

Revisamos is the 1st person plural form of revisar.

It can mean either:

• we review / we check (present tense), or
• we reviewed / we checked (preterite)

So on its own, revisamos is ambiguous between present and past. Spanish often allows this, and the surrounding context usually makes the meaning clear.

Examples:

• Hoy revisamos la firma. = Today we review/check the signature.
• Ayer revisamos la firma. = Yesterday we reviewed/checked the signature.

Spanish normally uses the definite article much more often than English.

So:

• la firma manuscrita = the handwritten signature
• la certificación = the certification

Repeating la before the second noun is completely normal because there are two separate feminine singular nouns joined by y:

• la firma manuscrita
• la certificación

You could think of it as:

• We check the handwritten signature and the certification.

In Spanish, most descriptive adjectives usually come after the noun.

So:

• firma manuscrita = handwritten signature

This is the normal order:

• noun + adjective

Examples:

• documento oficial = official document
• copia certificada = certified copy

Putting the adjective before the noun is sometimes possible in Spanish, but it often changes the tone, emphasis, or style. Here, firma manuscrita is the standard and natural wording.

Because it agrees with firma, which is a feminine singular noun.

In Spanish, adjectives must agree with the noun in:

• gender (masculine/feminine)
• number (singular/plural)

So:

• firma is feminine singular
• therefore: manuscrita must also be feminine singular

Compare:

• la firma manuscrita = feminine singular
• el texto manuscrito = masculine singular
• las firmas manuscritas = feminine plural
• los textos manuscritos = masculine plural

Manuscrita means handwritten.

It comes from manuscrito / manuscrita, which relates to something written by hand.

So:

• firma manuscrita = handwritten signature

It is not the same as manual.

• manual usually means manual/by hand in a more general sense, or it can mean handbook/manual
• manuscrito specifically refers to something written by hand

Examples:

• una carta manuscrita = a handwritten letter
• trabajo manual = manual work / hand work
• un manual de instrucciones = an instruction manual

Not exactly. Certificación usually means certification, attestation, or official verification/process of certifying, depending on context.

It is related to:

• certificar = to certify
• certificación = certification

A certificate as a document is often:

• certificado

So in many contexts:

• certificación = the certification / official certifying
• certificado = certificate

But real usage can overlap depending on legal or administrative context. That is why context matters.

It has an accent because of Spanish stress rules.

Certificación ends in -n, so without a written accent, the stress would normally fall on the second-to-last syllable. But the correct stress is on the last syllable:

• cer-ti-fi-ca-ción

So Spanish marks that with an accent:

• certificación

This is very common with nouns ending in -ción:

• información
• nación
• traducción
• certificación

Y means and.

Here it joins the two items:

• la firma manuscrita
• la certificación

So:

• la firma manuscrita y la certificación

Yes, y can change to e before words that begin with an i sound.

Examples:

• padre e hijo = father and son
• España e Italia = Spain and Italy

But here the next word is la certificación, so it stays y.

Yes, in some contexts, but the meaning changes slightly.

• revisamos = we review/check/examine
• verificamos = we verify
• comprobamos = we check/confirm

Revisar often suggests looking something over carefully. Verificar suggests confirming accuracy or validity. Comprobar often suggests checking whether something is correct or true.

So revisamos is a broad, natural choice if the idea is examining documents or details.

Yes, it sounds fairly formal or administrative.

Words like:

• firma manuscrita
• certificación

are common in legal, official, or bureaucratic contexts.

In everyday casual conversation, people might use simpler wording depending on the situation. But for documents, procedures, and official communication, this sentence sounds natural.

Yes, you can say:

• Nosotros revisamos la firma manuscrita y la certificación.

But in Spanish, subject pronouns are often left out because the verb ending already shows who is doing the action.

So:

• Revisamos... already means we review/check or we reviewed/checked

You would usually add nosotros only for:

• emphasis
• contrast
• clarity

Example:

• Nosotros revisamos la firma, pero ellos revisan el sello. = We check the signature, but they check the stamp.

Sometimes yes, depending on context.

In English, signature often already implies something written by hand, so translators may simply say signature if the distinction is not important.

But firma manuscrita is more specific: it explicitly means a handwritten signature, often to distinguish it from:

• a digital signature
• an electronic signature
• a stamped or printed signature

So if that contrast matters, handwritten signature is the better translation.