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Cover Letter Builder

Write a cover letter from a template, pick a design, and bundle it with your resume and certificates into one PDF.

Free, no uploads, no sign-up. Runs 100% in your browser.

How Cover Letter Builder works

The letter is laid out with pdf-lib using embedded Liberation Sans, so it looks identical everywhere and its text is readable by applicant tracking systems. Attached PDFs and images are appended in your order with a bookmark each.

Input: PDF, JPG, PNG. Output: PDF.

How to use Cover Letter Builder

  1. Drop your PDF onto the Cover Letter Builder area, or click to choose it.
  2. Wait a moment while page thumbnails render locally.
  3. Choose the pages and options you need. Previews update as you go.
  4. Press the main action button and download the finished PDF.

Tips

  • Encrypted PDFs must be unlocked first with Unlock PDF.
  • Large scanned PDFs are mostly images. Compress PDF shrinks them the most.
  • Your original file is never modified; you always download a new copy.

Cover Letter Builder FAQ

Are my files uploaded?
No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
Is it free? Are there limits or watermarks?
Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
Does it work offline?
Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

Related tools

  • Resume Builder: Fill a form, pick a template, download an ATS-friendly PDF resume.
  • Merge PDF: Combine multiple PDFs into one ordered document with drag-and-drop sorting.
  • Compress PDF: Shrink PDF size with smart image downsampling and stream compression.
  • Split PDF: Split by ranges, every N pages, or extract each page into a ZIP.

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