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Compress a PDF for a sede electrónica upload

Fit the size limit of a Spanish e-government portal, without uploading your file.

Files never leave your device · No upload · Free
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Spain’s sedes electrónicas, from the Agencia Tributaria and Seguridad Social to the DGT and your ayuntamiento, cap the size of each document you upload, and a normal scan is usually too big. This tool compresses your PDF to your target size on your device, so a document with your personal details is never uploaded to a third party.

How to compress a PDF for a sede electrónica

  1. 1

    Add your PDF

    Drop in the document the portal rejected for being too large.

  2. 2

    Set the target size

    Enter the limit the sede electrónica states, for example 2 MB or 4 MB.

  3. 3

    Compress and download

    Save the smaller PDF and upload it to the portal.

Why compress for a sede electrónica locally

Documents for a sede electrónica often carry your DNI, NIE or financial details. Compressing them in the browser means they are never uploaded to a compression service on the way to the official portal.

Aiming at an exact size?

Compression is really image compression, and most jobs are about hitting one specific number. We wrote up how to reach an exact size without wrecking the document, and why the work should happen on your device.

Read the compression guide

Frequently asked questions

What is the size limit on a sede electrónica?+

It varies by portal and procedure, often a few MB per document. Check the límite de tamaño stated on the form and enter it as your target here.

¿Se sube mi documento?+

No. Compression runs in your browser (en tu navegador), so the file never leaves your device.

The portal only accepts PDF. Is that fine?+

Yes, this keeps your file as a PDF; if you have images, convert them to PDF first, then compress.

Is it free?+

Yes, with no sign-up.

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