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PDF to ZIP: Bundle PDFs into One Archive

Put PDFs into a ZIP when a form or email wants one file, not twenty: every PDF goes into a single archive, with the names you gave them. It’s built in your browser, so nothing is uploaded.

Zip PDFs

Settings appear once you add a PDF.

Number the files in the order above 01-invoice.pdf, 02-receipt.pdf… so they stay in order when unzipped.

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  • 100% private Your PDFs never leave this device. Everything runs in your browser.
  • No limits No file-size cap, no watermark, no sign-up and no daily quota. Free.
  • Batch ready Add as many PDFs as you like; each one is handled and saved in one go.

How to put PDFs into a ZIP online

  1. Add your PDFs: Drop the PDFs you want to send together.

  2. Check the settings: Name the archive, and number the files if their order matters.

  3. Save the result: Save one ZIP. Anyone can open it on Windows, macOS, iOS or Android without installing anything.

Why it doesn’t upload

Bundles of PDFs are often a whole application or case file. Zipping them here keeps the full set on your device.

Check it in your browser’s Network tab

Worth knowing

  • PDFs are already compressed, so zipping them usually saves only a little space. To make the PDFs themselves smaller, compress them first.
  • Files with the same name get a number added so none is overwritten.
  • The ZIP has no password. To lock the documents themselves, encrypt the PDFs before zipping them.

Under the hood

What happens to your file

The files are packed into a ZIP archive in memory with fflate. PDFs and images are already compressed, so they are stored rather than squeezed again — which is faster and makes the same size of archive. Nothing inside any file is changed.

Runs on fflate

Why put PDFs in a ZIP?

Some forms and email systems take a single attachment, and twenty separate PDFs are awkward to download, upload or keep together. A ZIP bundles them into one file with every name intact, and the recipient unpacks them in a click.

The archive is built in your browser, so the documents aren’t uploaded to be zipped.

Common reasons to zip multiple PDF files

  • Portals that accept one file

    Bundle supporting documents into a single upload.

  • Sending a batch to an accountant

    Zip a year of invoices and statements into one attachment.

  • Archiving a project

    Keep every PDF for a case or a job together in one file.

  • Sharing course materials

    Give students all the readings as one download.

  • Keeping names and order

    Number the files so they unpack in the order you set.

Tips for zipping PDFs

  1. PDFs are already compressed, so a ZIP saves little space — compress the PDFs first if size matters.
  2. Turn on numbering to keep your order when the files are unpacked.
  3. Files with the same name get a number added, so nothing is overwritten.
  4. A ZIP has no password; encrypt sensitive PDFs individually before zipping them.
  5. Give the ZIP a clear name, like the form or case it belongs to.

Questions

How do I put multiple PDFs into one ZIP file?

Drop them here and press Make ZIP. You get one .zip file containing every PDF.

Does zipping a PDF make it smaller?

Only slightly — PDFs are compressed inside already. For a real reduction, compress the PDFs.

How do I zip a PDF on Windows or a Mac?

On Windows 11, right-click the file and choose Compress to ZIP file (on Windows 10, Send to → Compressed (zipped) folder). On a Mac, Control-click it and choose Compress. This page does the same in any browser, and can number the files so their order survives.

How do I zip a PDF on an iPhone or Android phone?

Open this page in Safari or Chrome, choose the PDFs and press Make ZIP; the archive is saved to Files or Downloads. On an iPhone, the Files app can also do it: press and hold the PDF and choose Compress.

Can I upload a ZIP to a portal that asks for one file?

If the portal accepts ZIP files, yes. Many don’t; if it wants a single PDF, merge them into one instead.

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