Kar*_*B.G 8 poppler docusignapi pdftoppm
我正在尝试将使用 DocuSign 签名的 pdf 转换为图像格式。我们在 Convert_from_path 方法中遇到错误。代码及错误如下所示：
import pdf2image
data=pdf2image.convert_from_path('name.pdf')
PDFPageCountError: Unable to get page count.
Syntax Error: Gen inside xref table too large (bigger than INT_MAX)
Syntax Error: Couldn't find trailer dictionary
Syntax Error: Invalid XRef entry
Syntax Error: Invalid XRef entry
Syntax Error: Top-level pages object is wrong type (null)
Command Line Error: Wrong page range given: the first page (1) can not be after the last page (0).
Gab*_*les 10
我在这里请求 poppler 添加 Ubuntu 的安装说明，即使只是链接到这个答案。我的请求很快被拒绝并关闭。如果您希望看到 poppler 更好地支持在世界上至少第四大最受欢迎的操作系统（Ubuntu）上安装和构建自己的产品，请投票支持此请求以表示您的支持。
pdftoppm/Poppler 需要更新。看这里：
pdftoppm在 Linux Ubuntu 上安装/升级到最新版本的 Poppler/（撰写本文时版本 22.11.0）：在 Ubuntu 20.04 上测试：
# check current version
# Mine shows: "pdftoppm version 0.86.1"
pdftoppm -v
# try to update it
sudo apt update
sudo apt install poppler-utils
# check current version again
pdftoppm -v
# Now run the `pdftoppm` command again to convert a PDF to a bunch of TIF files,
# for example:
pdftoppm "My PDF Password" -tiff -r 300 "in.pdf" "path/to/output/dir"
# OR (if you don't have a password on the PDF):
pdftoppm -tiff -r 300 "in.pdf" "path/to/output/dir"
# If it works, you're done! Otherwise, upgrade poppler by building it from
# source, as shown below.
在 Ubuntu 20.04 上，我的输出中的一行sudo apt install poppler-utils显示：
poppler-utils is already the newest version (0.86.1-0ubuntu1).
这意味着它没有为我升级 poppler，而且我仍然拥有旧版本。所以，我必须继续前进。
如果上述方法对您有效（例如，因为您使用的是 Ubuntu 22.04 或更高版本），请停止。但是，上面的过程对我来说不起作用。所以，我们需要从源代码安装。
pdftoppm以下是有关如何从源代码安装 poppler 的说明。看起来很多，但是非常重复，并且一次又一次地遵循相同的模式来手动安装一堆依赖项aptitude，所以不要害怕。只需阅读说明即可轻松完成。
poppler-utils is already the newest version (0.86.1-0ubuntu1).
# First, check your current version.
# Mine shows: "pdftoppm version 0.86.1"
pdftoppm -v
# Now go here and look for the latest download link and see what URL it points
# to: https://poppler.freedesktop.org/
# Under the "Download" section I see:
#
# The latest stable release is poppler-22.11.0.tar.xz, released on
# November 1, 2022:
#
# Hovering my mouse over the download link shows it to be the link below.
# **Update the link and version in all commands below.**
# Download it
wget https://poppler.freedesktop.org/poppler-22.11.0.tar.xz
# Extract the compressed file and cd into the extracted dir
tar -xf poppler-22.11.0.tar.xz
cd poppler-22.11.0
# Build and install it. See the "INSTALL" file in this dir for *some* level of
# help. Most of my instructions below are NOT in there :(.
mkdir -p build
cd build
git clone git://git.freedesktop.org/git/poppler/test
pdftoppm以确保它已升级并且现在可以工作sudo apt update
# Install the "easy" dependencies first:
# I expect these dependencies to install on Ubuntu 20.04 without issue
sudo apt install \
libfreetype-dev \
libfontconfig-dev \
libboost-dev \
libpng-dev \
zlib1g-dev \
liblcms2-dev \
libcurl4 \
libcurl4-gnutls-dev
# Install the "hard" dependencies second:
# Try this too, but this may not work for you. If it fails, see below. I expect
# these dependencies to NOT install on Ubuntu 20.04 without issue. If they fail
# to install, you will use `aptitude` to install the failed ones instead, as I
# explain and do below.
sudo apt install \
libjpeg-dev \
libcairo-dev \
libopenjp2-7-dev \
libtiff-dev \
libcurl4-gnutls-dev \
libnss3-dev
# When I run `sudo apt install libjpeg-dev` alone, for instance, I see the
# following output errors:
#
# Reading package lists... Done
# Building dependency tree
# Reading state information... Done
# Some packages could not be installed. This may mean that you have
# requested an impossible situation or if you are using the unstable
# distribution that some required packages have not yet been created
# or been moved out of Incoming.
# The following information may help to resolve the situation:
#
# The following packages have unmet dependencies:
# libjpeg-dev : Depends: libjpeg8-dev but it is not going to be installed
# E: Unable to correct problems, you have held broken packages.
# So, we will use the `aptitude` package installer tool to to solve that.
# First, install aptitude.
sudo apt install aptitude
# Install `libjpeg-dev` via `aptitude`:
sudo aptitude install libjpeg-dev
#
# Assuming your output looks the same as mine, and the options it gives you are
# the same and in the same order, choose **no** then **yes** to downgrade
# `libjpeg-turbo8`, thereby allowing `libjpeg-dev` to install. See the arrows
# (<=========================) below which I use to indicate where I make my
# selections in the interactive prompts during the installation process via
# the 'aptitude' installation tool:
#
#
# $ sudo aptitude install libjpeg-dev
# The following NEW packages will be installed:
# libjpeg-dev libjpeg-turbo8-dev{ab} libjpeg8-dev{a}
# 0 packages upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
# Need to get 238 kB/241 kB of archives. After unpacking 1,041 kB will be used.
# The following packages have unmet dependencies:
# libjpeg-turbo8-dev : Depends: libjpeg-turbo8 (= 2.0.3-0ubuntu1) but 2.0.3-0ubuntu1.20.04.3 is installed
# The following actions will resolve these dependencies:
#
# Keep the following packages at their current version:
# 1) libjpeg-dev [Not Installed]
# 2) libjpeg-turbo8-dev [Not Installed]
# 3) libjpeg8-dev [Not Installed]
#
#
#
# Accept this solution? [Y/n/q/?] n <=========================
# The following actions will resolve these dependencies:
#
# Downgrade the following packages:
# 1) libjpeg-turbo8 [2.0.3-0ubuntu1.20.04.3 (now) -> 2.0.3-0ubuntu1 (focal)]
#
#
#
# Accept this solution? [Y/n/q/?] y <=========================
# The following packages will be DOWNGRADED:
# libjpeg-turbo8
# The following NEW packages will be installed:
# libjpeg-dev libjpeg-turbo8-dev{a} libjpeg8-dev{a}
# 0 packages upgraded, 3 newly installed, 1 downgraded, 0 to remove and 0 not upgraded.
# Need to get 356 kB/359 kB of archives. After unpacking 1,040 kB will be used.
# Do you want to continue? [Y/n/?] y <=========================
# Get: 1 http://us.archive.ubuntu.com/ubuntu focal/main amd64 libjpeg-turbo8 amd64 2.0.3-0ubuntu1 [118 kB]
# Get: 2 http://us.archive.ubuntu.com/ubuntu focal/main amd64 libjpeg-turbo8-dev amd64 2.0.3-0ubuntu1 [238 kB]
# Fetched 356 kB in 1s (490 kB/s)
# dpkg: warning: downgrading libjpeg-turbo8:amd64 from 2.0.3-0ubuntu1.20.04.3 to 2.0.3-0ubuntu1
# (Reading database ... 474322 files and directories currently installed.)
# Preparing to unpack .../libjpeg-turbo8_2.0.3-0ubuntu1_amd64.deb ...
# Unpacking libjpeg-turbo8:amd64 (2.0.3-0ubuntu1) over (2.0.3-0ubuntu1.20.04.3) ...
# Selecting previously unselected package libjpeg-turbo8-dev:amd64.
# Preparing to unpack .../libjpeg-turbo8-dev_2.0.3-0ubuntu1_amd64.deb ...
# Unpacking libjpeg-turbo8-dev:amd64 (2.0.3-0ubuntu1) ...
# Selecting previously unselected package libjpeg8-dev:amd64.
# Preparing to unpack .../libjpeg8-dev_8c-2ubuntu8_amd64.deb ...
# Unpacking libjpeg8-dev:amd64 (8c-2ubuntu8) ...
# Selecting previously unselected package libjpeg-dev:amd64.
# Preparing to unpack .../libjpeg-dev_8c-2ubuntu8_amd64.deb ...
# Unpacking libjpeg-dev:amd64 (8c-2ubuntu8) ...
# Setting up libjpeg-turbo8:amd64 (2.0.3-0ubuntu1) ...
# Setting up libjpeg-turbo8-dev:amd64 (2.0.3-0ubuntu1) ...
# Setting up libjpeg8-dev:amd64 (8c-2ubuntu8) ...
# Setting up libjpeg-dev:amd64 (8c-2ubuntu8) ...
# Processing triggers for libc-bin (2.31-0ubuntu9.9) ...
# Install `libcairo-dev` the same way and with the same selections:
sudo aptitude install libcairo-dev
#
# $ sudo aptitude install libcairo-dev
# Note: selecting "libcairo2-dev" instead of the virtual package "libcairo-dev"
# The following NEW packages will be installed:
# libcairo-script-interpreter2{a} libcairo2-dev libice-dev{a} libpixman-1-dev{a} libpthread-stubs0-dev{a} libsm-dev{a} libx11-dev{ab} libxau-dev{a} libxcb-render0-dev{a} libxcb-shm0-dev{a} libxcb1-dev{a}
# libxdmcp-dev{a} libxext-dev{a} libxrender-dev{a} x11proto-core-dev{a} x11proto-dev{a} x11proto-xext-dev{a} xorg-sgml-doctools{a} xtrans-dev{a}
# 0 packages upgraded, 19 newly installed, 0 to remove and 0 not upgraded.
# Need to get 2,569 kB of archives. After unpacking 10.5 MB will be used.
# The following packages have unmet dependencies:
# libx11-dev : Depends: libx11-6 (= 2:1.6.9-2ubuntu1) but 2:1.6.9-2ubuntu1.2 is installed
# The following actions will resolve these dependencies:
#
# Keep the following packages at their current version:
# 1) libcairo2-dev [Not Installed]
# 2) libx11-dev [Not Installed]
# 3) libxext-dev [Not Installed]
# 4) libxrender-dev [Not Installed]
#
#
#
# Accept this solution? [Y/n/q/?] n <=========================
# The following actions will resolve these dependencies:
#
# Downgrade the following packages:
# 1) libx11-6 [2:1.6.9-2ubuntu1.2 (now) -> 2:1.6.9-2ubuntu1 (focal)]
#
#
#
# Accept this solution? [Y/n/q/?] y <=========================
# The following packages will be DOWNGRADED:
# libx11-6
# The following NEW packages will be installed:
# libcairo-script-interpreter2{a} libcairo2-dev libice-dev{a} libpixman-1-dev{a} libpthread-stubs0-dev{a} libsm-dev{a} libx11-dev{a} libxau-dev{a} libxcb-render0-dev{a} libxcb-shm0-dev{a} libxcb1-dev{a}
# libxdmcp-dev{a} libxext-dev{a} libxrender-dev{a} x11proto-core-dev{a} x11proto-dev{a} x11proto-xext-dev{a} xorg-sgml-doctools{a} xtrans-dev{a}
# 0 packages upgraded, 19 newly installed, 1 downgraded, 0 to remove and 0 not upgraded.
# Need to get 3,141 kB of archives. After unpacking 10.5 MB will be used.
# Do you want to continue? [Y/n/?] y <=========================
# Install `libopenjp2-7-dev` the same way and with the same selections:
sudo aptitude install libopenjp2-7-dev
#
# $ sudo aptitude install libopenjp2-7-dev
# The following NEW packages will be installed:
# libopenjp2-7-dev{b}
# 0 packages upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
# Need to get 26.7 kB of archives. After unpacking 168 kB will be used.
# The following packages have unmet dependencies:
# libopenjp2-7-dev : Depends: libopenjp2-7 (= 2.3.1-1ubuntu4) but 2.3.1-1ubuntu4.20.04.1 is installed
# The following actions will resolve these dependencies:
#
# Keep the following packages at their current version:
# 1) libopenjp2-7-dev [Not Installed]
#
#
#
# Accept this solution? [Y/n/q/?] n <=========================
# The following actions will resolve these dependencies:
#
# Downgrade the following packages:
# 1) libopenjp2-7 [2.3.1-1ubuntu4.20.04.1 (now) -> 2.3.1-1ubuntu4 (focal)]
#
#
#
# Accept this solution? [Y/n/q/?] y <=========================
# The following packages will be DOWNGRADED:
# libopenjp2-7
# The following NEW packages will be installed:
# libopenjp2-7-dev
# 0 packages upgraded, 1 newly installed, 1 downgraded, 0 to remove and 0 not upgraded.
# Need to get 168 kB of archives. After unpacking 168 kB will be used.
# Do you want to continue? [Y/n/?] y <=========================
# Install `libtiff-dev` the same way and with the same selections:
sudo aptitude install libtiff-dev
#
# $ sudo aptitude install libtiff-dev
# The following NEW packages will be installed:
# libjbig-dev{a} liblzma-dev{ab} libtiff-dev{b} libtiffxx5{a}
# 0 packages upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
# Need to get 461 kB of archives. After unpacking 1,796 kB will be used.
# The following packages have unmet dependencies:
# libtiff-dev : Depends: libtiff5 (= 4.1.0+git191117-2build1) but 4.1.0+git191117-2ubuntu0.20.04.3 is installed
# liblzma-dev : Depends: liblzma5 (= 5.2.4-1) but 5.2.4-1ubuntu1.1 is installed
# The following actions will resolve these dependencies:
#
# Keep the following packages at their current version:
# 1) liblzma-dev [Not Installed]
# 2) libtiff-dev [Not Installed]
#
#
#
# Accept this solution? [Y/n/q/?] n <=========================
# The following actions will resolve these dependencies:
#
# Downgrade the following packages:
# 1) liblzma5 [5.2.4-1ubuntu1.1 (now) -> 5.2.4-1 (focal)]
# 2) libtiff5 [4.1.0+git191117-2ubuntu0.20.04.3 (now) -> 4.1.0+git191117-2build1 (focal)]
#
#
#
# Accept this solution? [Y/n/q/?] y <=========================
# The following packages will be DOWNGRADED:
# liblzma5 libtiff5
# The following NEW packages will be installed:
# libjbig-dev{a} liblzma-dev{a} libtiff-dev libtiffxx5{a}
# 0 packages upgraded, 4 newly installed, 2 downgraded, 0 to remove and 0 not upgraded.
# Need to get 715 kB of archives. After unpacking 1,788 kB will be used.
# Do you want to continue? [Y/n/?] y <=========================
# Install `libcurl4-gnutls-dev` the same way and with the same selections:
sudo aptitude install libcurl4-gnutls-dev
#
# $ sudo aptitude install libcurl4-gnutls-dev
# The following NEW packages will be installed:
# libcurl4-gnutls-dev{b}
# 0 packages upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
# Need to get 318 kB of archives. After unpacking 1,525 kB will be used.
# The following packages have unmet dependencies:
# libcurl4-gnutls-dev : Depends: libcurl3-gnutls (= 7.68.0-1ubuntu2) but 7.68.0-1ubuntu2.12 is installed
# The following actions will resolve these dependencies:
#
# Keep the following packages at their current version:
# 1) libcurl4-gnutls-dev [Not Installed]
#
#
#
# Accept this solution? [Y/n/q/?] n <=========================
# The following actions will resolve these dependencies:
#
# Downgrade the following packages:
# 1) libcurl3-gnutls [7.68.0-1ubuntu2.12 (now) -> 7.68.0-1ubuntu2 (focal)]
#
#
#
# Accept this solution? [Y/n/q/?] y <=========================
# The following packages will be DOWNGRADED:
# libcurl3-gnutls
# The following NEW packages will be installed:
# libcurl4-gnutls-dev
# 0 packages upgraded, 1 newly installed, 1 downgraded, 0 to remove and 0 not upgraded.
# Need to get 549 kB of archives. After unpacking 1,524 kB will be used.
# Do you want to continue? [Y/n/?] y <=========================
# Install `libnss3-dev` the same way and with the same selections:
sudo aptitude install libnss3-dev
#
# $ sudo aptitude install libnss3-dev
# The following NEW packages will be installed:
# libnspr4-dev{a} libnss3-dev{b}
# 0 packages upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
# Need to get 437 kB of archives. After unpacking 2,611 kB will be used.
# The following packages have unmet dependencies:
# libnss3-dev : Depends: libnss3 (= 2:3.49.1-1ubuntu1) but 2:3.49.1-1ubuntu1.8 is installed
# The following actions will resolve these dependencies:
#
# Keep the following packages at their current version:
# 1) libnss3-dev [Not Installed]
#
#
#
# Accept this solution? [Y/n/q/?] n <=========================
# The following actions will resolve these dependencies:
#
# Downgrade the following packages:
# 1) libnss3 [2:3.49.1-1ubuntu1.8 (now) -> 2:3.49.1-1ubuntu1 (focal)]
#
#
#
# Accept this solution? [Y/n/q/?] y <=========================
# The following packages will be DOWNGRADED:
# libnss3
# The following NEW packages will be installed:
# libnspr4-dev{a} libnss3-dev
# 0 packages upgraded, 2 newly installed, 1 downgraded, 0 to remove and 0 not upgraded.
# Need to get 1,608 kB of archives. After unpacking 2,473 kB will be used.
# Do you want to continue? [Y/n/?] y <=========================
*.tar.xz文件：https://linuxize.com/post/how-to-extract-unzip-tar-xz-file/-DOPTION_NAME）：
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