ブログ＆チュートリアル

変換ガイド
PDFからJPG

PDFからJPG - Converting PDF files to JPG is extremely useful when you want to share document pages as images. You can easily convert your PDF pages to JPG or PNG format for use in presentations, social media sharing, or web publishing. Control output quality with DPI settings.

PdfMetric 11 Mar 2026
PDFのヒント
PDFページ番号

PDFページ番号 - Adding page numbers is the most effective way to keep long PDF documents organized. Page numbers make it easier for readers to navigate the document, add a professional appearance, and enable referencing. They are essential for multi-page documents such as reports, theses, manuals, and contracts.

PdfMetric 06 Mar 2026
PDFのヒント
PDFページ回転ガイド

PDFページ回転ガイド - Scanned documents or PDF files saved in the wrong orientation are a common problem in daily business life. Documents obtained from scanners sometimes come rotated 90 or 180 degrees. This makes the document difficult to read and does not present a professional appearance. PDF page rotation tools solve this problem in seconds.

PdfMetric 01 Mar 2026
画像編集
HEICとWebPフォーマット

HEICとWebPフォーマット - HEIC and WebP are modern image formats that offer the same or higher quality at much smaller file sizes compared to traditional JPG and PNG formats. However, not every platform and application supports these formats, making conversion frequently necessary.

PdfMetric 24 Feb 2026
PDFのヒント
印刷用PDFガイド

印刷用PDFガイド - PDFs prepared for professional printing have different requirements than standard PDFs. CMYK color mode, bleed, crop marks, and high resolution are elements that directly affect print quality.

PdfMetric 19 Feb 2026
生産性
バッチ処理ガイド

バッチ処理ガイド - Processing multiple files simultaneously greatly increases work efficiency. Batch converting, compressing, merging, and format changing can be automated instead of doing them one by one. PdfMetric's batch processing features save significant time.

PdfMetric 14 Feb 2026
セキュリティ
PDF機密データ保護

PDF機密データ保護 - PDF documents may contain personal data, financial information, or trade secrets. Protecting this sensitive data before sharing is mandatory under GDPR, CCPA, and other data protection regulations. Redaction and masking tools permanently hide this data.

PdfMetric 09 Feb 2026
生産性
PDFアクセシビリティ

PDFアクセシビリティ - PDF accessibility is critically important for ensuring equal access to documents for people with disabilities. Screen readers must correctly read PDFs, text alternatives must be available for visually impaired users, and structural tags must be present.

PdfMetric 04 Feb 2026
画像編集
画像フォーマット比較

画像フォーマット比較 - Image formats like JPG, PNG, WebP, GIF, TIFF, and HEIC each have unique advantages and use cases. Choosing the right format provides the best balance between file size, quality, and compatibility. Different formats are preferred for web, print, and storage.

PdfMetric 30 Jan 2026
カテゴリー
人気ツール