why pdf file at archive.org is so slow to open

[loushan...@sina.com]

i've found many books at archive.org in pdf format

but reading them in acrobat for linux is painful, it's slow

it's fast in acrobat for android

and i think it's fast in Windows

adobe has stopped upgrade for linux

i've tried evince, gnome default viewer, it crash

https://archive.org/details/historyofmoderne0000sche

file name: historyofmoderne0000sche.pdf

above is an example, other pdf files at archive.org have same problem, slow!

please test with example above before recommending pdf viewer

[Michael Stone]

works fine here

[Siard]

On Sun, 04 Jul 2021 17:03 +0800, loushan...@sina.com wrote:
> i've found many books at archive.org in pdf formatbut reading them in

> acrobat for linux is painful, it's slow

> it's fast in acrobat for androidand i think it's fast in Windows

> adobe has stopped upgrade for linux
> i've tried evince, gnome default viewer, it crash
> https://archive.org/details/historyofmoderne0000sche file name:
> historyofmoderne0000sche.pdf
> above is an example, other pdf files at archive.org have same problem,
> slow! please test with example above before recommending pdf viewer

As far as I can see, the download is rather slow.
I guess you stop the download process too soon.
If the downloaded file is less than 17 MB, then it is not complete.
If I give it some time (1 or 2 minutes?), then the pdf is readable,
also in Evince.

[David Wright]

On Sun 04 Jul 2021 at 17:03:26 (+0800), loushan...@sina.com wrote:
> i've found many books at archive.org in pdf formatbut reading them in acrobat for linux is painful, it's slow
> it's fast in acrobat for androidand i think it's fast in Windowsadobe has stopped upgrade for linux

> i've tried evince, gnome default viewer, it crash

> https://archive.org/details/historyofmoderne0000schefile name: historyofmoderne0000sche.pdf
> above is an example, other pdf files at archive.org have same problem, slow!please test with example above before recommending pdf viewer

Do you download the file to run your viewers?

$ md5sum historyofmoderne0000sche.pdf
7970f205d8456b149e12deb5452ce2f9 historyofmoderne0000sche.pdf
$

No problem reading the file here with xpdf, evince, mupdf, zathura or gv.
No problem reading with firefox at https://archive.org/details/historyofmoderne0000sche
I don't know anything about acrobat. Using buster here.

The only cause I can think of is that you're reading the file
piecemeal over the web, and perhaps the redirection process is
being repeated over and over. The PDF files aren't actually
where you think they are, as shown by the download dialogue:

$ wget https://archive.org/download/historyofmoderne0000sche/historyofmoderne0000sche.pdf
--2021-07-04 09:16:20-- https://archive.org/download/historyofmoderne0000sche/historyofmoderne0000sche.pdf
Resolving archive.org (archive.org)... 207.241.224.2
Connecting to archive.org (archive.org)|207.241.224.2|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://ia802905.us.archive.org/7/items/historyofmoderne0000sche/historyofmoderne0000sche.pdf [following]
--2021-07-04 09:16:21-- https://ia802905.us.archive.org/7/items/historyofmoderne0000sche/historyofmoderne0000sche.pdf
Resolving ia802905.us.archive.org (ia802905.us.archive.org)... 207.241.233.55
Connecting to ia802905.us.archive.org (ia802905.us.archive.org)|207.241.233.55|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 16779995 (16M) [application/pdf]
Saving to: ‘historyofmoderne0000sche.pdf’

historyofmoderne0000sche 100%[==================================>] 16.00M 829KB/s in 23s

2021-07-04 09:16:44 (726 KB/s) - ‘historyofmoderne0000sche.pdf’ saved [16779995/16779995]

$

Cheers,
David.

[loushan...@sina.com]

Thanks!

it has nothing to do with download

i have saved it to home directory

and then open it with acrobat for linux

it's slow when i browse it

what cpu do you use?

my cpu is old and cheap

[Cindy Sue Causey]

On 7/4/21, loushan...@sina.com <loushan...@sina.com> wrote:
>
> Thanks!it has nothing to do with downloadi have saved it to home
> directoryand then open it with acrobat for linuxit's slow when i browse it
> what cpu do you use?my cpu is old and cheap


Hi.. I saw some of the other of this thread where you named a couple
of viewers. Have you tried Atril, too? I can't say that the speed will
be any different, but sometimes good things happen. :)

Atril's in the main repository for me in Bullseye. Its short
"apt-cache search" description says it's a MATE desktop environment
viewer, but I have it installed on XFCE4. I just fake purged it to see
what else it would uninstall. Only 4 other packages, for whatever that
might be worth per each, our own personalized Debian installs.

Cindy :)
--
Cindy-Sue Causey
Talking Rock, Pickens County, Georgia, USA

* runs with birdseed *

[Weaver]

Install Okular, with supporting packages.
Why use Adobe products.
If you install Lightbeam, you will find they connect directly with the
CIA.
Adobe is spyware as far as I'm concerned.
Cheers!

Harry.
--
`When injustice becomes law, resistance becomes duty'
-- Thomas Jefferson

[Polyna-Maude Racicot-Summerside]

Hi,

On 2021-07-04 5:04 p.m., loushan...@sina.com wrote:
>
>
> Thanks!
> it has nothing to do with download
> i have saved it to home directory
> and then open it with acrobat for linux
> it's slow when i browse it
>

Why don't you try using one of the software included in Debian ?
xpdf
okular
evince
and possibly more.
Try one of the software compiled by the Debian developers and
distributed inside the Debian distribution.

Often software like Adobe Acrobat are bloated with useless publicity or
other possibility that make them slow like traveling a ocean on a raft
with two paddle.

> what cpu do you use?
> my cpu is old and cheap
>

Sincerely,

--
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development

[Polyna-Maude Racicot-Summerside]

Hi,

> Install Okular, with supporting packages.

Good advice.
> Why use Adobe products.
Good question !

> If you install Lightbeam, you will find they connect directly with the
> CIA.

You just lost all type of credibility right now.
Don't take your dream for reality. If this would be true then they
woudln't be dumb enough to make this traceable to the open.
You just blew up all you said earlier and made a fool of yourself.
Not that spyware don't exist or that the CIA don't spy on people but
that you say things out of context, without any fact to support them and
presented like a undeniable fact.
Yes and election we're stolen too...

The greatest menace to democracy is human dumbness as those get easy to
drive thru the use of custom chosen publicity driven by artificial
intelligence.
People who have basic knowledge of information and fact validation, plus
the ability to distinguish between rumors and bias don't fall for AI
based manipulation.

You had a good message but blew it up by not keeping those two lip together.

> Adobe is spyware as far as I'm concerned.

Can be true but not in the sense you wrote earlier.
> Cheers!
>
> Harry.

[Weaver]

Silly little man!

[Weaver]

-------- Original Message --------
Subject: Re: why pdf file at archive.org is so slow to open
Date: 05-07-2021 09:48
From: Weaver <wea...@riseup.net>
To: Polyna-Maude Racicot-Summerside <deb...@polynamaude.com>

On 05-07-2021 08:59, Polyna-Maude Racicot-Summerside wrote:

> Hi,
>
>> Install Okular, with supporting packages.
> Good advice.
>> Why use Adobe products.
> Good question !
>> If you install Lightbeam, you will find they connect directly with the
>> CIA.
> You just lost all type of credibility right now.
> Don't take your dream for reality. If this would be true then they
> woudln't be dumb enough to make this traceable to the open.
> You just blew up all you said earlier and made a fool of yourself.
> Not that spyware don't exist or that the CIA don't spy on people but
> that you say things out of context, without any fact to support them and
> presented like a undeniable fact.
> Yes and election we're stolen too...
>
> The greatest menace to democracy is human dumbness as those get easy to
> drive thru the use of custom chosen publicity driven by artificial
> intelligence.
> People who have basic knowledge of information and fact validation, plus
> the ability to distinguish between rumors and bias don't fall for AI
> based manipulation.

And you're an idiot.
`without any fact to support them'?
I clearly stated, `If you install Lightbeam'.
Are you capable of reading the English language?
If you install Lightbeam, visit the Adobe site, you will see the
association clearly.
Perhaps you need to wake up to the fact your words apply to yourself.

> You had a good message but blew it up by not keeping those two lip together.

Yes, exactly!

>> Adobe is spyware as far as I'm concerned.
> Can be true but not in the sense you wrote earlier.

No, as far as I'm concerned, it's spyware.
Your approval for my individual thought process has not been sought or
required.

[loushan...@sina.com]

Thanks!

i've installed atril, evince and okular for buster for i386 at your recommendation

evince for buster seems better than for stretch

i use xosview to monitor performance

4G memory is always enough, but cpu usage is high, meaning slow

[John Crawley]

Downloads from archive.org have always been slow for me, but, once downloaded, the linked file opens normally in evince.

--
John

[Andrew M.A. Cater]

Just a polite reminder: however annoyed you feel, insulting each other
on list really doesn't help get technical or other points across.

Anybody can phrase things badly: anybody can get things wrong at times:
everybody can be wrong at times or just be badly informed.
If all else fails: when you read something that punches your buttons, stop,
wait 15 minutes, draft a politer reply - or set that thing aside and
just ignore it or the person who wrote it wihout escalating it.
Sometime, maybe, that person will have something more useful to contribute
that you may benefit from.

Andy - who doesn't always get things right himself.

Andy Cater
[For the Community Team]

[to...@tuxteam.de]

On Mon, Jul 05, 2021 at 06:21:40AM +0000, Andrew M.A. Cater wrote:
>
> Just a polite reminder: however annoyed you feel, insulting each other
> on list really doesn't help get technical or other points across.

Thanks, Andrew.

Folks: if you enjoy slinging mud at each other, fine. But please, do
it off-list :-)

I'd add "don't hurt each other", but that's me.

Cheers
- t

[Polyna-Maude Racicot-Summerside]

Hi,

On 2021-07-05 2:34 a.m., to...@tuxteam.de wrote:
> On Mon, Jul 05, 2021 at 06:21:40AM +0000, Andrew M.A. Cater wrote:
>>
>> Just a polite reminder: however annoyed you feel, insulting each other
>> on list really doesn't help get technical or other points across.
>

I totally agree with you Andrew.

Everything that is unrelated to the following can be considered useless:

Technical aspects of a software/hardware
What practice could be considered optimal for a specific case
Arguments to support some technological / methodological choice
References to documents / HOWTO / FAQ / etc...

and so on... ( I'm pretty sure we get the point here).

Yes it does make the reading bloated for other users and may even cause
some people to loose interest in the mailing list.

There may arise situation where it may be opportunistic to engage into
some opinion, if the goal is to make a better community. This is my firm
belief and the message I am responding to, can be considered such a
situation.

There is a point that I never saw being put forward and I think it must
be dealt with, that is credibility.

Same thing over what was the base of the situation here.

If CIA really does infiltrate Adobe Software (or any company) then they
have all the power needed to hide their track. It's not any usual layman
that will have the power to trace back to them, even with all the
willpower he may have.

Also, if such a discovery would be made then I'm convinced that anyone
who has solid proof would share them with either news agency,
investigative journals, etc. Not keep it to oneself, only to be shared
as part of a comment regarding the speed of opening a PDF file.

So this sound to me as a pure fiction based arguments to support one's
conviction against closed source software (Adobe in this case).
Again this make the community of open source user look like a bunch of
nutcracker thinking there's spy everywhere and going back to the 50's -
60's witch hunt.

Or it's a really bad understanding over already published documents
about some of the NSA program...

This also raised doubt about evertything he could say, if someone
doesn't validate info received and make such frivolous claim then how
can I have a sense of trust over small suggestions he's making.

For example that there's a real speed gain of using USB 3.0 for a
webcam. Or that plugging a USB 2.0 device onto a USB 3.0 hub could
reduce the speed for all the device on the hub. Even if the last part if
true, I'll have a doubt over the whole sentence. (I made this one up)

> Thanks, Andrew.
>
> Folks: if you enjoy slinging mud at each other, fine. But please, do
> it off-list :-)
>

I dislike to see people ask for help, in good faith they will find it
here and it turn bad for them. And they don't get back on the list...

If having harsh exchange between each other may annoy the continuous
user of the mailing list, then don't be fooled, first time user may get
driver off the mailing list because they get far-reached unrelated
explanation. And those one won't come back telling everyone why they left.

If the goal of this mailing list is also to retain user in the use of
Debian Linux distribution (and possibly derivative) then this shall also
be dealt with.

> I'd add "don't hurt each other", but that's me.

I prefer consensual food fight over mud slinging, plus I always make
sure not to target the eyes.
>
> Cheers
> - t

[riveravaldez]

On 7/4/21, loushan...@sina.com <loushan...@sina.com> wrote:

> Thanks! i've installed atril, evince and okular for buster for i386 at your

> recommendationevince for buster seems better than for stretch
> i use xosview to monitor performance4G memory is always enough, but cpu

> usage is high, meaning slow

Another excellent option (specially for old machines) is zathura,
available in the
official repositories, IIRC.

Best regards!

[loushan...@sina.com]

riveravaldez wrote:

Another excellent option (specially for old machines) is zathura,

available in the official repositories, IIRC.

Best regards!

i've just installed zathura, it doesn't have Continuous mode as opposed to Single Page mode

and it  lacks gui components, you have to read manual to use it

i'm not satisfied with it, Thanks anyway!

[David Wright]

On Tue 13 Jul 2021 at 20:13:30 (+0800), loushan...@sina.com wrote:
> riveravaldez wrote:

> Another excellent option (specially for old machines) is zathura,available in the official repositories, IIRC.

> i've just installed zathura, it doesn't have Continuous mode as opposed to Single Page modeand it lacks gui components, you have to read manual to use iti'm not satisfied with it, Thanks anyway!

I installed zathura specifically for Continuous mode. It sounds as if
you're running in Presentation mode.

The current version of Xpdf has a memory leak (on page changes) that
eventually overwhelms swap, and this seems to be provoked particularly
when in Continuos mode. So I have zathura set up as an alternative in
mc for viewing large PDFs.

Just for the record, the key bindings are very configurable, and it
honours synctex. (You can click between the PDF and the corresponding
place in the source.) As someone who runs xpdf almost entirely through
keystrokes, it makes a very good alternative.

Cheers,
David.

[loushan...@sina.com]

David, you are right, it has Continuous mode

but it's slow, and it lacks gui, making it difficult to use

i don't think gui components requires fast cpu

[Nicholas Geovanis]

Having just heard of the Lightroom product and scratched the surface of Mr Weaver's objections to it (he called it Lightbeam): whether my pix goto the intelligence community or not, I wouldn't want them traveling across the nets to be digitally processed or stored. But quoting Jello Biafra, the convenience you demanded is now mandatory.

[David Wright]

On Wed 14 Jul 2021 at 18:43:15 (+0800), loushan...@sina.com wrote:

> [Zathura] has Continuous modebut it's slow,

I think it's slower to start than xpdf, but it doesn't grind to a halt
100 pages later.

> and it lacks gui, making it difficult to use

I can see the use for a mouse to cut and paste, or to pick a spot
for adding an annotation, but not for much else in a PDF /viewer/,
particularly when reading archived texts.

> i don't think gui components requires fast cpu

How fast will be made obvious by the speed with which the widgets
are drawn on your screen (which is presumably local, and not being
rendered by archive.org).

Leaving aside the political subthread (they seem to be infecting
several threads), this thread has listed a number of different PDF
viewers that are available in Debian. But I haven't seen any attempt
of your factoring out where your perceived slowness comes from: the
website, the viewer, or the method of delivery (downloading, or else
reading interactively across the internet).

Cheers,
David.

[loushan...@sina.com]

David, you are right again, i'm going nowhere(making no progress)

actually i've said on

Mon, 05 Jul 2021 05:04:54 +0800

that slowness has nothing to do with download

i open it as local file

i believe pdf format used by archive.org is cause of slowness

they are scanned books, and allow you to select text, it's advanced (and complicated)

my viewer performs better when viewing  pdf files from other source

and my cpu is slower than that used by mainstream users