PDF Tools— Guides & Articles

• A4 Size in cm: Exact Dimensions and Conversions

  Published 2026-07-30

  A4 paper is 21 × 29.7 cm (210 × 297 mm). See the exact dimensions in cm, mm, and inches, plus how to convert A4 to pixels at any DPI.

  

• Convert CSV to PDF in Excel Without Uploading

  Published 2026-07-30

  Convert CSV to PDF from Excel into a printable landscape PDF in your browser. Quoted-field parsing, repeated headers, 100×12 cell limits. No upload.

  

• How to Mail Merge PDF Files Without Uploading

  Published 2026-07-30

  Mail merge PDF files into one document with a private browser tool. Combine, reorder, and download instantly — nothing leaves your device.

  

• Convert a JPG File to PDF With Custom Page Sizes

  Published 2026-07-29

  Turn one or many JPG files into a single PDF in your browser. Pick A4, Letter, or Fit-to-image, set margins, and download — nothing uploaded.

  

• Add Header and Footer to a PDF in Your Browser

  Published 2026-07-29

  Add header and footer text to every page of a PDF in your browser. Insert page-number tokens, set font size and edge margin, and download locally.

  

• How to Mirror PDF Pages Horizontally or Vertically

  Published 2026-07-29

  Mirror PDF pages left to right or top to bottom in your browser. No upload, no signup — flip selected pages or a range like 1-3,5 and download a new PDF…

  

• Use Preflight to Flatten a PDF Form Without Acrobat

  Published 2026-07-29

  Skip Adobe Preflight and flatten PDF form fields in your browser. Pick a file, confirm the AcroForm count, and download a locked, flat copy.

  

• Extract PDF Pages in Adobe: A Browser Workflow

  Published 2026-07-29

  Extract PDF pages in Adobe workflows using a browser-based tool that keeps pages in your specified order, runs locally, and produces a clean new PDF.

  

• Copy an Image from a PDF Without Losing Quality

  Published 2026-07-29

  Extract embedded JPG and RGB or grayscale images from a PDF in your browser and keep the original quality. No upload, no re-render, no signup.

  

• How to Delete PDF Pages on Your Phone

  Published 2026-07-29

  Delete PDF pages on your phone or tablet from a browser tool. Pick the PDF, type pages to remove like 2, 5-7, and download the trimmed file — no app.