https://pdfviewer.io/
https://apps.apple.com/app/pdf-viewer-annotation-expert/id1475494784?mt=12
最佛心的免費無廣告可編輯的 PSPDFKit 出品 PDF Viewer 終於發布 Mac 版本了
基本上就是它們的 PDF Engine 火力展示品，Dropbox, Box, IBM, Atlassian, SAP
都是用它們家顯示 PDF
除了標記 (PRO) 都是免費版就有的功能，超佛
PDF Viewer Pro is a fast and beautiful app, allowing you to view, search, and
annotate PDF documents with ease on your Mac.
VIEW DOCUMENTS ON YOUR MAC
‧ Open files from the Finder. Supports Drag & Drop.
‧ Search for the exact text you are looking for within the document.
‧ Annotate images (JPEG, PNG) non-destructive, just like PDF documents. (PRO)
ANNOTATE WITH EASE
‧ Highlight and markup text while reviewing a document.
‧ Leave comments by adding a note, text, or drawing directly on the PDF.
‧ Add images or audio.
‧ Reply to notes. (PRO)
SIGN DOCUMENTS ANYWHERE
‧ Add your signature to any document.
‧ Move and resize your signature as needed.
‧ Flatten a document to ensure the signature doesn’t change.
CREATE AND EDIT PDFs
‧ Create new documents from existing documents by moving, rotating,
deleting, or adding new pages.
‧ Combine multiple documents into a single one. (PRO)
‧ Leave a simple bookmark or create an entire table of contents for your
document.
FILL OUT FORMS
‧ Quickly fill out PDF forms by adding text to the fields.
‧ Flatten and secure the form once you’re done to ensure the document doesn
’t change.
‧ Add a signature to any form.
SHARE
‧ Share documents by printing, emailing or saving your edits.
PASSWORD PROTECT DOCUMENTS
‧ Read document metadata, title and keywords.
‧ Protect documents with user and owner passwords and limit permissions.
(PRO)
AND SO MUCH MORE
‧ Conveniently switch to night mode when viewing your documents at night.
‧ Have the text from a PDF read out loud to you with text-to-speech.