PDF Metadata Viewer
Inspect page count, document properties, and page sizes
Document properties
Page sizes
PDF Metadata Viewer — what it does
Inspect a PDF's page count, document properties and the dimensions of each page, all read locally. It is the first look you take at an unfamiliar file: how long it is, what produced it, what it claims to be, and whether its pages are the size the printer expects.
When this tool helps
- Checking who authored and produced a document before circulating it further.
- Confirming page sizes are consistent before sending a file to print.
- Reading the page count and properties of a document without opening a PDF application.
How to use it
- Choose the PDF file.
- Read the document properties.
- Review the page count and page sizes.
- Clean or edit the metadata if anything should not be there.
Accuracy, limits, and good practice
- Mixed page sizes in one file are a common cause of print jobs coming out scaled or misaligned — this shows them before the printer does.
- The producer field often reveals the exact software and version used, which is worth checking before a document leaves the organisation.
- Sizes are in PDF points: A4 is 595 by 842 and US Letter is 612 by 792, so a glance tells you which standard a file follows.
Frequently asked questions
Why do my page sizes vary?
Merged documents keep each source's dimensions. The page size converter normalises them onto one sheet size.
Is the file uploaded to be inspected?
No. Parsing happens in your browser, which is exactly what you want when checking for information that should not be shared.
What is the difference between creator and producer?
Creator is typically the application the content was authored in; producer is the software that wrote the PDF itself.
Related tools on this site
- Pomodoro Timer — Run a focused work timer in your browser
- Resize Image — Change image width and height in your browser
- PDF Form Filler — Load AcroForm fields, enter values, and export a filled or flattened PDF
Everything above runs inside this page. PDF Metadata Viewer needs no account, no upload, and no server round trip — close the tab and nothing is left behind.
PDF 文件資訊檢視器能做什麼
在本機檢視 PDF 的頁數、文件屬性與每一頁的尺寸。這是你面對陌生檔案的第一眼：它有多長、由什麼產生、自稱是什麼，以及頁面尺寸是否符合印表機的預期。
什麼時候用得上
- 在文件繼續流通前，確認作者與製作軟體。
- 送印前確認頁面尺寸是否一致。
- 不開 PDF 軟體也能查看文件的頁數與屬性。
使用步驟
- 選擇 PDF 檔案。
- 閱讀文件屬性。
- 檢視頁數與各頁尺寸。
- 若有不該存在的資訊，接著清除或編輯中繼資料。
精確度、限制與實務建議
- 同一檔案內頁面尺寸不一，是列印被縮放或對位錯誤的常見原因——這裡會比印表機更早告訴你。
- 製作軟體欄位常會透露確切的軟體與版本，文件離開組織前值得先看一眼。
- 尺寸以 PDF 點為單位：A4 是 595 x 842、US Letter 是 612 x 792，一眼就知道檔案採用哪種標準。
常見問題
為什麼頁面尺寸不一樣？
合併後的文件會保留各來源的尺寸。頁面尺寸轉換工具可把它們統一到同一種紙張。
檢視需要上傳檔案嗎？
不需要。解析在瀏覽器中完成——當你正在檢查不該外流的資訊時，這正是你要的。
建立者與製作軟體差在哪？
建立者通常是撰寫內容的應用程式；製作軟體則是實際寫出 PDF 的程式。
本站相關工具
以上步驟全部在這個頁面內完成，PDF 文件資訊檢視器 不需要註冊、不上傳檔案、也不經過伺服器，關閉分頁後不會留下任何資料。