One of the oldest PDF editors on the Mac, PDF Editor ushered in the 3.0 update!

Real OCR Recognition

The PDF format is very diverse and can be converted from a variety of other formats. The source file basically determines whether the converted PDF file can directly use the text content. For example, after converting a DOC file to a PDF file, the text content can be used directly, while after converting a JPG file to a PDF file, the text content cannot be used directly.

In the case of PDF files in the text content can not be used directly,merge two pdf pages into one page mac we need to use OCR technology to recognize the text content. Although there are many applications on the market with built-in OCR functionality, but they either do not have a high recognition rate, or the Chinese support is not good, or as expensive as Acrobat Pro.

PDF editor is very smart to use Apple's Apple Vision framework, in reducing the cost of cross-platform adaptation at the same time to ensure that the recognition rate and multi-language support. In addition, Readdle also through machine learning technology to recognize different fonts in the document, even handwritten text also has a good recognition success rate.

Without manually enabling OCR recognition, you can use the PDF editor to directly highlight or copy text from scanned PDF files. However, in the testing process, I found that some scanned PDF files can not select the text, it is not clear whether the new version of the bug.

If you want to get a full-page PDF document or the text of the entire PDF document, you can select "Scanning and Recognition" in the toolbar > "Recognize Text".OCR is completed, the PDF Editor will be directly in the original scanned text using the recognized text overlay. Here you can see the first advantage of the OCR function in PDF Editor, that is, you can retain the original document layout format.

The second advantage of the OCR function in PDF Editor is that it supports multiple languages, including Simplified Chinese and Traditional Chinese, and the recognition rate is quite good.

The third advantage is that the PDF editor supports OCR after the recognition of the document for individual correction. Click on any one of the well-divided blocks in the document, you can see the original image (scanned text) of this part. If the recognition result is wrong, you can directly enter the correct result in the input box, and the text displayed in the document will be corrected.

Convenient and practical format conversion

When using text editors such as Word, WPS or Markdown editors such as Ulysses and iA Writer, we can export documents to a wide variety of formats. This is based on the fact that the content of the source file can be read and written directly. On the other hand, in the PDF reader, you want to convert PDF files into other formats is much more difficult, such as converting .pdf format to .doc format or .xls format.

With the help of OCR technology, PDF Editor makes the format conversion function very simple. Simply in the "File" > "Export to" in the choice of any one format, PDF Editor will be the current PDF document will be converted to the specified file format, and to retain the original layout format.

I tested Word documents, Excel sheets, rich text format and several other more complex formats, the conversion effect is basically satisfactory. Among them, the PDF file is converted to Excel forms after the data will automatically fill in the cell.

If the PDF file is converted to a Word document, the source file will be retained, the recognition of good text content will be directly covered in the source file, scratch the word after the selection can be used directly.

Intelligent scanning enhancement

We read a lot of PDF documents are scanned, but the scanning quality varies, resulting in a poor reading experience. PDF Editor in the new version of the new scanning enhancements to help us optimize the quality of scanning, through enhanced scanning, splitting the page, cropping the page, remove the blank edges and other features to improve the readability of scanned documents.

Enhanced Scanning includes 3 options: Color Filtering, Remove Distortion, and Set Page Size. When Enhance is enabled, you can change the contrast, distortion and page size of the scanned image to make it look sharper and more polished.

The actual effect of the Clear Margins feature does not quite live up to its name. It actually fills the four margins of the page with solid colors to make it easier to write markups or to enhance the aesthetics of the entire layout.

Split Page This feature is also very useful. If we scan a document or a book with both left and right pages at the same time, this feature can help us automatically identify the center seam and split it into two separate pages.

PDF Editor for Mac also optimizes the layout of the whole interface, using better-looking tool icons and adjusting the height of the toolbar to make it easier to click. Currently, PDF Editor provides rich features such as text annotation, PDF merging, form filling, signing, editing content (text, images and links), and editing documents (rearranging, rotating, extracting). Together with the three new features introduced in the new version around the OCR technology, PDF Editor can basically meet all our needs for PDF file operations on Mac.