PDFフォントをアウトライン化：印刷に適したフォント不要のPDF

A PDF That Prints the Same Everywhere

Fonts are the most fragile part of a PDF. If a viewer or a print shop lacks the embedded font — or substitutes it badly — text reflows, glyphs turn to boxes, and a carefully set document comes out wrong. Flattening removes the dependency entirely: each page is rendered once at high resolution and stored as an image, so what you see is literally what every printer gets.

This is the workflow print shops call 'convert to outlines' or 'flatten fonts'. The output needs no fonts at all, which makes it safe for commercial printing, for archival copies, and for documents you want to be sure render identically on any device.

What You Can Control

Two settings decide the output: how sharp the pages render, and whether text stays searchable.

Honest Trade-Offs

Flattening is a one-way operation. Once a page is an image, its text can no longer be edited, reflowed or restyled — keep the original file as your editable master. File size also grows with DPI and page count, since every page becomes a full-resolution image.

Choose the searchable option when the file still needs to be found by text — an archive copy, a contract, a report. Skip it when the point is that the text can't be lifted: a proof, a paid document, or a file where extraction would be a problem.

How It Compares

Flattening trades editability for absolute rendering fidelity.

Rendered Locally, Never Uploaded

Every page is rasterized in your browser and the PDF is rebuilt on your device. Print-ready files are usually the sensitive kind — book interiors, packaging, legal filings — so nothing is transmitted and closing the tab wipes the data.