有沒有實用的工具可以修改(用橡皮擦和筆)內容是掃描文件或數位相機拍攝的圖片的pdf檔?如果是的話,哪一個好?
答案1
答案2
pdf圖像是一個提取圖像的程式:
NAME
pdfimages - Portable Document Format (PDF) image extractor (version 3.00)
SYNOPSIS
pdfimages [options] PDF-file image-root
DESCRIPTION
Pdfimages saves images from a Portable Document Format (PDF) file as Portable Pixmap (PPM), Portable Bitmap (PBM), or JPEG files.
Pdfimages reads the PDF file PDF-file, scans one or more pages, and writes one PPM, PBM, or JPEG file for each image, image-root-
nnn.xxx, where nnn is the image number and xxx is the image type (.ppm, .pbm, .jpg).
pdfimages --help
pdfimages version 0.12.4
Copyright 2005-2009 The Poppler Developers - http://poppler.freedesktop.org
Copyright 1996-2004 Glyph & Cog, LLC
Usage: pdfimages [options] <PDF-file> <image-root>
-f <int> : first page to convert
-l <int> : last page to convert
-j : write JPEG images as JPEG files
-opw <string> : owner password (for encrypted files)
-upw <string> : user password (for encrypted files)
-q : don't print any messages or errors
-v : print copyright and version info
-h : print usage information
-help : print usage information
--help : print usage information
-? : print usage information
pdftopppm是另一個:
NAME
pdftoppm - Portable Document Format (PDF) to Portable Pixmap (PPM) converter (version 3.00)
SYNOPSIS
pdftoppm [options] PDF-file PPM-root
DESCRIPTION
Pdftoppm converts Portable Document Format (PDF) files to color image files in Portable Pixmap (PPM) format, grayscale image
files in Portable Graymap (PGM) format, or monochrome image files in Portable Bitmap (PBM) format.
Pdftoppm reads the PDF file, PDF-file, and writes one PPM file for each page, PPM-root-nnnnnn.ppm, where nnnnnn is the page num‐
ber.
如前所述,您可以嘗試使用圖形處理軟體開啟 PDF。
作為最後的後備措施,您可以顯示 PDF、截取螢幕截圖並進行處理。
答案3
若要修改內容為掃描文件的 pdf 文件,您可以安裝期刊在您的系統上。
如果您有基於 Debian 或 Ubuntu 的系統,請開啟終端機並輸入此命令 L sudo apt-get install xournal
,或透過 synaptic 軟體套件管理器安裝它。對於 Fedora,請使用sudo yum install xournal
.